Cities are turning climate goals into action people can see
The Yearly Offer of Action is an initiative led by C40 Cities and the Global Covenant of Mayors for Climate & Energy (GCoM) that shows how cities are delivering climate action every single year.
Each year, ahead of the UN climate conference (COP), mayors set out a concrete action they’ll deliver in the next 12 months and report back on what they achieved in the last.
Global climate goals are only met when action happens on the ground. The Yearly Offer of Action shows cities are already making it happen.
A growing movement of cities delivering now
Launched at the 2025 World Mayors Summit with 42 cities, the Yearly Offer of Action has grown to 69 cities across every continent, representing 270 million people.
Their actions span clean energy, electric transport, extreme weather protection, nature-based solutions and sustainable construction.
From Bogotá’s 1,900 electric buses to Tokyo hitting its 2030 solar targets two years early, from Chennai’s 88 sponge parks to Rome’s citywide network of cooling shelters, mayors are turning ambition into real, measurable change.
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C40 Cities -
GCoM -
Mutirão -
Other
2027 · GCoM · Mutirao
Abaetetuba
Abaetetuba is planting trees
- Country
- Brazil
- Region
- Latin America
- Climate topics
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- Adaptation and resilience
- Urban nature
In 2027, Abaetetuba will expand and improve urban tree cover across streets, squares, schools, public facilities, and other priority areas, focusing on places most exposed to heat and with less vegetation.
Aside from planting more trees, Abaetetuba will improve maintenance and community participation, making the city cooler, healthier, and more climate-resilient.
2027 · C40 Cities · GCoM
Abidjan
Abidjan is putting young people at the centre of climate action
- Country
- Cotê d'Ivoire
- Region
- Africa
- Climate topics
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- Adaptation and resilience
- Community
In 2027, Abidjan will fund youth-led climate projects through its new Youth and Climate Action Fund, launched with support from Bloomberg Philanthropies.
The fund will help between eight and 50 projects led by young people to tackle climate change in the city.
2027 · C40 Cities · GCoM
Addis Ababa
Addis Ababa is creating green jobs through climate-focused investment
- Country
- Ethiopia
- Region
- Africa
- Climate topics
-
- Early warning systems
- Just transition
- Urban nature
Addis Ababa is restoring its rivers and strengthening climate resilience
In 2027, Addis Ababa will restore urban rivers, protect riverbank communities from flooding, prevent illegal encroachment, and expand wastewater treatment. A new early warning system will pair real-time river monitoring with neighbourhood emergency training, helping riverbank households prepare before floods hit. Improved drainage, riverbank vegetation and water quality monitoring will further strengthen the city’s resilience to extreme weather events.
Addis Ababa is creating green jobs through climate-focused investment
In 2027, Addis Ababa will put green jobs at the heart of its climate investment. Through stronger public–private partnerships, the city will invest in river restoration, wastewater treatment, sustainable water management and green infrastructure. It will also expand its electric transit network and add rapid charging points at key hubs, all powered by the country’s fully renewable hydroelectric grid, to deliver Ethiopia’s ban on internal combustion engine (ICE) vehicles. These investments will open up new employment opportunities while improving water security, strengthening flood management, cutting emissions, and prioritising climate-resilient urban development
2026 · GCoM
Adelaide
Adelaide expands solar and greening resilience
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
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- Electrification
- Extreme heat
- Floods
How Adelaide is doing it
In 2026, Adelaide will expand urban greening and tree planting to reduce urban heat and achieve a 40% urban canopy. The city is also investing heavily in infrastructure, with a $20 million commitment to upgrade stormwater systems through the Resilient Flood Planning Project. Furthermore, the Sustainable Incentives Scheme (SIS), backed by a $233,000 budget in 2026, will fund solar PV, battery installations, and subsidised EV charging points for residents, accelerating the path to net zero. These actions prove that global leadership grows from strong local action.
Progress made
In 2026, the City of Adelaide advanced urban greening toward its 40% canopy target, reduced urban heat island impacts, and invested in flood resilience and community carbon reduction. Progress included planting 205 street trees guided by heat island data, and progressing its stormwater management plan to identify priority locations for flood mitigation, liveability and biodiversity outcomes. The Sustainable Incentives Scheme (SIS) funded 156 projects, including 41 battery storage systems, 14 solar installations and 8 EV charging stations, alongside energy-efficiency upgrades such as insulation, shading, thermal improvements and appliance electrification.
What's happening in 2026
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Extreme heat
Expanded greening
Expand urban greening and tree planting to reduce urban heat and achieve a 40% urban canopy.
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Floods
Resilient Flood Planning
A $20 million commitment to upgrade stormwater systems through the Resilient Flood Planning Project.
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Electrification
Sustainable Incentives Scheme
The SIS funded 156 projects, including battery storage systems, solar installations and EV charging stations.
2027 · GCoM
Adelaide
Adelaide is improving green spaces
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
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- Adaptation and resilience
- Urban nature
In 2027, the City of Adelaide will strengthen the climate resilience of the Adelaide Park Lands surrounding the city center, a vital green space providing cooling, biodiversity, and recreation. By combining local knowledge, spatial data, and surveys, the city will focus on climate risks to priority species and landscapes to ensure these spaces thrive for future generations.
What's happening in 2027
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Adaptation and resilience
Adelaide Park Lands
Strengthen the climate resilience of the vital green space, that provides cooling, biodiversity, and recreation.
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Urban nature
Protecting biodiversity
The city will focus on climate risks to priority species and landscapes to ensure these spaces thrive for future generations.
2027 · C40 Cities
Ahmedebad
Ahmedabad is electrifying its public transport
- Country
- India
- Region
- South and West Asia
- Climate topics
-
- Clean energy
- Transport
In 2027, Ahmedabad will deploy up to 1,000 new electric buses across the city and expand solar-powered charging for them.
The city is prioritising underserved neighbourhoods, villages, industrial areas and interchange hubs, cutting emissions and noise while making journeys safer and more comfortable for everyone.
2026 · C40 Cities · GCoM
Amman
Amman addresses transport and waste
- Country
- Jordan
- Region
- South and West Asia
- Climate topics
-
- Transport
- Waste management
By the end of 2026, Amman will add 20 new Euro 5 buses to its fleet, expanding zero-emission and low-emission transport options to reduce air pollution and carbon output.
In parallel, the city will scale up its Solid Waste Management and Source Separation (SoWas) Project by introducing waste sorting systems in three new sites. This expansion builds on proven success to cut carbon emissions, boost recycling rates, and reinforce Amman’s commitment to a greener, circular urban economy.
2026 · C40 Cities · GCoM
Athens
Athens promises smarter, cleaner climate action
- Country
- Greece
- Region
- Europe
- Climate topics
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- Air quality
- Energy and buildings
- Waste management
How Athens is doing it
Athens will use technology to accelerate smarter and cleaner climate action.
The city will upgrade 360 sanitation vehicles with telematics systems, integrate digital tracking tags into 12,100 waste bins for automatic recognition during collection, and install 1,000 bin-fill sensors, transforming waste collection into a smart, data-driven service.
A citywide air-quality monitoring network will provide real-time data to guide actions reducing pollution in vulnerable neighborhoods. 300 school buildings will be upgraded into “smart schools,” equipped to manage energy, water, and fuel consumption, with selected ones fully renovated for energy efficiency. These actions will support students in understanding sustainability and resourcefulness.
Progress made
In 2026, Athens expanded its smart technology to make city services more efficient. Waste collection is guided by data, with GPS tracking on 360 sanitation vehicles, digital tags on 12,100 bins and 1,000 sensors that show when bins are full. The city has also installed 100 air-quality sensors that provide real-time data and smart meters at 300 municipal facilities, including schools and nurseries, to track energy, water and fuel use.
2027 · C40 Cities · GCoM
Athens
Athens is launching its first electric bus service
- Country
- Greece
- Region
- Europe
- Climate topic
-
- Transport
How Athens is doing it
In 2027, Athens will start rolling out ATHENS MOVE, the city’s first municipal public transport service.
17 electric buses will run on four neighbourhood routes covering 40km and 185 stops, connecting underserved areas to the metro, tram and wider bus network. The service will cut transport emissions and give residents an affordable, cleaner alternative to driving.
What's happening in 2027
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Transport
First municipal public transport service
ATHENS MOVE is the City’s first municipal public transport service
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Electrification
Connecting people everywhere
17 electric buses will cover 40km and 185 stops across four neighbourhoods, connecting underserved areas
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Clean energy
Reducing emissions for all
The service will help cut emissions and give residents an affordable, cleaner alternative to driving
2027 · C40 Cities · GCoM
Austin
Austin is expanding clean energy and shade
- Country
- USA
- Region
- North America
- Climate topics
-
- Clean energy
- Energy and buildings
- Extreme heat
In 2027, Austin will begin one of the largest expansions of solar energy on city-owned buildings in US cities.
In the next year, Austin will complete over 25% of the overall project by adding solar installations to 40 city buildings and properties, from libraries and recreation centers to office buildings and warehouses. The city will also increase efforts to protect residents most vulnerable to extreme heat, investing in six new cool corridors.
2027 · GCoM · Mutirao
Barcarena
Barcarena is preparing for extreme heat
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Extreme heat
- Water
In 2027, Barcarena will develop a Heat Risk Action Plan and put its new heat risk management guidelines into action, prioritising passive cooling measures in public spaces and buildings.
The city will also improve shade and hydration to reduce the health impacts of extreme heat, with particular attention to vulnerable residents and people working outdoors.
2027 · C40 Cities · GCoM
Barcelona
Barcelona is testing its readiness for extreme heat
- Country
- Spain
- Region
- Europe
- Climate topic
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- Extreme heat
In 2027, Barcelona will run ‘Barcelona at 50°C’, a citywide exercise testing how prepared the city is for extreme heat.
Public authorities, health institutions and community groups will work through collaborative workshops, a decision-making exercise and a full-scale live simulation of a 50°C scenario, supported by digital tools, to uncover weak points and strengthen coordination across sectors. The lessons will directly shape future planning and investment.
What's happening in 2027
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Extreme heat
Heat preparedness
‘Barcelona at 50°C’ will test how prepared the city is for extreme heat
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Community
Strengthening coordination
Collaborative workshops, live simulations, and decision-making exercises will strengthen coordination across communities
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Adaptation and resilience
Shaping the future
Lessons will shape future planning and investment
2026 · C40 Cities · GCoM
Barcelona
Barcelona uses tourist tax to protect residents
- Country
- Spain
- Region
- Europe
- Climate topics
-
- Clean energy
- Extreme heat
How Barcelona is doing it
In 2026, Barcelona will intensify efforts to combat the reality of extreme heat by focusing on protecting vulnerable residents, particularly children.
The city’s climate control project will install solar panels and aero-thermal systems to 170 schools by the end of the project. This €100 million strategy is funded by the tourist tax, signalling Barcelona’s strong commitment to its community.
Progress made
In 2026, Barcelona adapted 84 schools to better cope with extreme heat, making strong progress towards its target of 170 schools across the city. The city prioritised those most exposed to heat, and the difference is already showing, with indoor temperatures significantly improved. Energy savings are now being tracked, with results expected by the end of the year.
2027 · GCoM · Mutirao
Benevides
Benevides is tackling organic waste in schools
- Country
- Brazil
- Region
- Latin America
- Climate topic
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- Waste management
In 2027, Benevides will introduce a structured organic waste management system across its 41 schools, serving around 10,741 students, with separate collection of school meal waste and a central composting unit at SEMAGRI.
The programme will turn organic waste into high-quality fertiliser for local production and the Municipal Nursery, while strengthening environmental education and technical skills across the school network.
2027 · C40 Cities
Bengaluru
Bengaluru is cooling public buildings
- Country
- India
- Region
- South and West Asia
- Climate topics
-
- Energy and buildings
- Extreme heat
In 2027, Bengaluru will scale its “cool roof” initiative to 45 public buildings, after pilots cut indoor temperatures by up to 5 degrees and roof surface temperatures by up to 10.
Done in collaboration with the National Ministry of Housing and Urban Affairs, the rollout protects residents’ health from the growing risks of urban heat.
2027 · C40 Cities · GCoM
Bogotá
Bogotá is growing its electric bus fleet
- Country
- Colombia
- Region
- Latin America
- Climate topic
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- Transport
In 2027, Bogotá will add 390 electric buses to its public transport system, bringing the total to roughly 1,900, with more vehicles set to join in the years ahead.
2026 · C40 Cities · GCoM
Bogotá
Bogotá boosts climate-friendly transport
- Country
- Colombia
- Region
- Latin America
- Climate topics
-
- Electrification
- Reducing emissions
- Transport
How Bogotá is doing it
In 2026, Bogotá will boost its electric bus fleet by adding 390 new e-buses, bringing the total to 1,876. This expansion will save an additional 20,000 tons of CO2 per year, making the electric fleet’s total annual emissions reduction 100,000 tons. The city will also continue investing US $19.9 billion in sustainable infrastructure, including new projects like Metro Line 1 and 2, innovative cable cars, clean Bus Rapid Transit (BRT) lines, and the Wastewater Treatment Plant to clean the Bogotá River.
Progress made
In 2026, Bogotá procured 900 electric public buses, with 147 already deployed and 415 expected by the end of the year, making the city on track for a full fleet by 2029. Once complete, this will cut CO2e emissions by 57,477 tonnes every year, equivalent to the CO2 captured annually by 2.6 million trees.
2027 · C40 Cities · GCoM
Boston
Boston is helping residents cut energy bills
- Country
- USA
- Region
- North America
- Climate topics
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- Energy and buildings
- Just transition
In 2027, Boston is making energy upgrades easier through the Boston Energy Saver programme, offering one-on-one support to renters, homeowners and small businesses to save money and reduce emissions.
The city is deepening partnerships with community organisations so that residents hit hardest by high energy bills can get appropriate support. Boston is working towards weather-proofing 10,000 homes and installing 5,000 heat pumps by the end of the year.
2026 · GCoM
Bridgeport
Bridgeport reclaims its waterfront
- Country
- USA
- Region
- North America
- Climate topics
-
- Community
- Just transition
- Water
In 2026, Bridgetown will continue existing work to transform the entire 24-mile coastline, turning it into a publicly accessible waterfront. As part of the Waterfront Master Plan, the city is constructing new public pathways, parks, and resilient mixed-use development. The city is prioritising nature-based solutions to restore the coast, turning former industrial centres, like the waterfront coal plant site, into symbols of a sustainable future. This revitalisation will bring a renewed sense of community and improved quality of life for the residents of Bridgeport.
What's happening in 2026
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Water
Waterfront Master Plan
Transforming the 24-mile coastline it into a publicly accessible waterfront.
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Community
Renewed sense of community
The city is improving quality of life with new public pathways, parks, and resilient mixed-use developments.
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Just transition
Nature-based solutions
Turning former industrial centres, like the waterfront coal plant site, into symbols of our sustainable future.
2026
Broward County
Broward County cuts port emissions
- Country
- USA
- Region
- North America
- Climate topics
-
- Clean energy
- Reducing emissions
- Transport
How Broward County is doing it
In 2026, Broward County is taking a massive step for clean air by preparing to install shore power at eight berths in Port Everglades. This means ships can turn off their engines while docked and plug straight into the local electric grid instead. Annually this move is projected to eliminate over 11,366 metric tons of carbon dioxide, cutting ship emissions at the port by nearly 25%, which is the same as taking 2,470 cars off the road every year. By offering shore power, Port Everglades is building the future of cleaner, more sustainable marine transportation, directly reducing air pollution for surrounding communities.
2027 · C40 Cities · GCoM
Buenos Aires
Buenos Aires is protecting its most vulnerable residents from extreme heat
- Country
- Argentina
- Region
- Latin America
- Climate topic
-
- Extreme heat
How Buenos Aires is doing it
In 2027, Buenos Aires will roll out its extreme heat plan across the city, establishing coordination between government departments and running response drills to prepare for heatwaves.
A network of 252 cooling shelters and more than 600 drinking fountains will give residents, including over 10,000 outdoor workers, the elderly and those with heart and lung conditions, somewhere safe to go when temperatures spike. Technological alert tools will help the city respond faster to heat emergencies across its hottest neighbourhoods.
2026 · C40 Cities · GCoM
Buenos Aires
Buenos Aires advances on electric transport
- Country
- Argentina
- Region
- Latin America
- Climate topics
-
- Community
- Electrification
- Transport
How Buenos Aires is doing it
Buenos Aires is advancing its goal to become a carbon-neutral city by 2050 with the launch of the first Trambús line in 2026. This 20 km zero-emission electric corridor will feature 50 fully electric vehicles and dedicated lanes. It is expected to cut travel times by up to 40% for over 50,000 daily users, connecting eight neighbourhoods and integrating efficiently with five subway lines, with stops every 500 metres.
Progress made
In 2026, Buenos Aires moved closer to launching its electric Trambús, with the first route due to start running in November. Concrete paving along the route is now complete and 58 of 60 stops are under construction, bringing better connections to underserved neighbourhoods such as Caballito, Almagro, Boedo and Pompeya.
Residents have helped shape the project from the start. The city carried out more than 3,200 surveys, delivered 240,000 flyers and held three public meetings. Door-to-door outreach continues as works progress, keeping those most affected informed.
2026 · C40 Cities · GCoM
Cape Town
Cape Town vows to scale up clean energy
- Country
- South Africa
- Region
- Africa
- Climate topics
-
- Clean energy
- Electrification
- Energy and buildings
How Cape Town is doing it
In 2026, Cape Town will commission its first city-owned solar plant in Atlantis, generating 14.7 GWh of clean electricity annually, actively delivering on our commitment to energy security, affordability, and carbon neutrality. The city is urgently scaling up this initiative by adding Battery Energy Storage at the site and developing a second solar site of up to 70 MW, which can supply clean energy to nearly 46,000 homes. Guided by our Energy 2050 strategy, these projects demonstrate the City’s leadership in municipal energy generation in South Africa.
2027 · GCoM · Mutirao
Caxias do Sul
Caxias do Sul is making public transport more accessible
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Transport
In 2027, Caxias do Sul will reorganise and modernise its public transport system, creating up to three new integration stations and preparing the network for the start of fleet electrification.
The changes will make public transport a more attractive alternative to private cars, while improving access to jobs, education, healthcare and other services, particularly for people in more vulnerable areas.
2027 · GCoM
Chefchaouen
Chefchaouen is turning to solar
- Country
- Morocco
- Region
- Africa
- Climate topics
-
- Clean energy
- Fossil fuels
- Reducing emissions
In 2027, the Municipality of Chefchaouen will install and commission solar panels across key municipal buildings, including the main headquarters, central market, and bus station.
This will significantly reduce reliance on fossil fuels, cut greenhouse gas emissions, and boost local energy independence, demonstrating a concrete step in the city’s commitment to sustainable urban development.
2026 · GCoM
Chefchaouen
Chefchaouen goes solar for resilience
- Country
- Morocco
- Region
- Africa
- Climate topics
-
- Clean energy
- Energy and buildings
- Reducing emissions
In 2026, Chefchaouen will become a pioneering Moroccan city in local climate action by commissioning 5 solar panel installations on key municipal sites such as the municipal headquarters, the municipal slaughterhouse, the central municipal market, the civil registry building, and the Mediterranean Diet House. This project will reduce the public sector’s dependence on fossil fuels, lower greenhouse gas emissions, and strengthen the city’s energy independence.
Progress made
In 2026, Chefchaouen successfully completed comprehensive technical diagnostic, finalized studies, and prepared all tender document (cahier des charges) required for the planned 2027 installation of solar panels on administrative buildings.
What's happening in 2026
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Energy and buildings
Solar panel installations
Solar panels commissioned on key municipal sites.
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Reducing emissions
Lower emissions
Reduce greenhouse gas emissions by turning to clean energy.
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Clean energy
Energy independence
Reducing the public sector’s dependence on fossil fuels.
2027 · C40 Cities
Chennai
Chennai is turning its parks into flood defences
- Country
- India
- Region
- South and West Asia
- Climate topics
-
- Adaptation and resilience
- Urban nature
- Water
In 2027, Chennai is developing 25 new “sponge parks” to soak up stormwater during heavy rainfall, building on 88 already in place across the city.
Alongside this, the city is restoring its waterways (including three lakes) to create greener, safer spaces as protection from increasing flood risks.
2027 · C40 Cities · GCoM
Chicago
Chicago is putting residents first as data centres grow
- Country
- USA
- Region
- North America
- Climate topic
-
- Governance
In 2027, Chicago will regulate data centres by introducing a long-term regulatory framework.
It builds on the city’s Sustainable Data Centres Working Group and a recent Executive Order that aims to protect residents from unfair environmental, energy and infrastructure burdens, while keeping the city open to responsible investment.
2027 · GCoM
Cluj-Napoca
Cluj-Napoca is expanding electric public transport
- Country
- Romania
- Region
- Europe
- Climate topics
-
- Clean energy
- Transport
How Cluj-Napoca is doing it
In 2027, Cluj-Napoca will accelerate its green transition by adding 20 electric vehicles to its already 70% electric public transport fleet.
The city is also advancing its hydrogen bus programme, cutting fossil fuel reliance and delivering cleaner, quieter journeys.
2027 · C40 Cities · GCoM
Copenhagen
Copenhagen is strengthening climate budgeting and governance
- Country
- Denmark
- Region
- Europe
- Climate topic
-
- Governance
In Copenhagen, climate action is embedded across the city, from governance and operations to finance and development.
In 2027, the city will expand its climate budget to cover all of its climate goals across departments. The city will also continue rolling out a new governance model that gives each political committee its own CO2 target for cutting emissions from municipal procurement. Together, these steps will put climate at the heart of financial decision-making.
What's happening in 2027
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Governance
New governance model
The City’s climate budget will address all climate goals across departments
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Reducing emissions
Emission targets
Each political committee will have its own CO2 target for cutting emissions from municipal procurement
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Just transition
Mainstreaming climate finance
Climate action will sit at the heart of financial decision-making
2026 · C40 Cities · GCoM
Copenhagen
Copenhagen works to cut carbon emissions
- Country
- Denmark
- Region
- Europe
- Climate topics
-
- Clean energy
- Energy and buildings
- Reducing emissions
In Copenhagen, the city takes climate responsibility for our built environment. From 2026 onwards, it will have decided that all new municipal building projects shall meet the voluntary ‘Low Emission Class’ in the Danish Building Regulations, which will cut construction emissions from each new municipal building project by around 20 percent compared to the mandatory ‘Standard Class’.
2027 · C40 Cities · GCoM
Curitiba
Curitiba is leading the region's El Niño response
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Adaptation and resilience
- Early warning systems
In 2027, Curitiba will keep building on the metropolitan taskforce of 20 cities that it’s already brought together to tackle flooding driven by El Niño.
The city is combining sponge parks, retention basins and satellite monitoring, alongside new contingency plans built specifically for the phenomenon. As C40’s Vice-Chair for El Niño Response, Mayor Eduardo Pimentel is raising awareness of how the climate breakdown is making extreme weather like this more frequent and intense in Latin America, and how cooperation between cities can help protect their residents.
2026 · C40 Cities · GCoM
Curitiba
Curitiba accelerates electrification of transport
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Electrification
- Reducing emissions
- Transport
In 2026, Curitiba is accelerating the electrification of its transport system.
In May, the city introduced the first public electric vehicle charging station in southern Brazil. It will serve cars, taxis, ride shares and commercial trucks on a former gas station site. Developed in partnership with C40’s Laneshift programme, the station is a major step in Curitiba’s mission to electrify transport and achieve carbon neutrality by 2050.
2027 · C40 Cities
Dalian
- Country
- China
- Region
- Central East Asia
- Climate topic
-
- Transport
In 2027, Dalian will replace around 350 outdated buses, cutting transport emissions, boosting air quality and improving quality of life.
The move is part of a wider push to build urban resilience and green development across the city.
2026 · C40 Cities
Dalian
Dalian pledges climate resilience and adaptation
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Adaptation and resilience
- Community
- Transport
In 2026, Dalian is launching its core climate resilience plan, “the Dalian Climate Change Adaptation Work Plan”. Within this, the city is conducting a detailed, scientific risk analysis to protect services and guide future urban development. Also, as part of our work, we will replace 1,096 outdated buses with new electric models in 2026, which will improve air quality, urban resilience, green development, and residents’ overall livelihoods.
Progress made
In 2026, Dalian welcomed 500 electric buses, the first batch in a large-scale overhaul of its ageing fleet. The city has also drafted its Climate Change Adaptation Work Plan, mapping climate risks and setting out new ways to adapt across key sectors.
2027 · C40 Cities · GCoM
Dar al Salaam
Dar es Salaam is improving waste management and clean cooking
- Country
- Tanzania
- Region
- Africa
- Climate topics
-
- Clean energy
- Waste management
How Dar al Salaam is doing it
In 2027, Dar es Salaam will register at least 500 informal waste workers, giving them a path to better protections and skills development, and open two Material Recovery Facilities to upgrade its waste system.
To build towards its target of 80% of residents using clean energy for cooking, the city will deliver cleaner cooking solutions to schools, markets and other institutions serving more than 100 people.
2026 · GCoM
Despeñaderos
Despeñaderos fuels sustainable transport
- Country
- Argentina
- Region
- Latin America
- Climate topics
-
- Clean energy
- Green jobs
- Transport
How Despeñaderos is doing it
In 2026, Despeñaderos will ensure all of its city vehicles run on a plant-based biofuel. The city will ensure 100% of its diesel vehicles use B20 biofuel, reducing fossil fuel dependence and preventing 42 tons of CO₂ emissions annually. This bold local initiative is projected to strengthen the circular economy and create 100 local jobs.
What's happening in 2026
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Transport
Clean city vehicles
100% of city diesel vehicles will use B20 biofuel.
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Reducing emissions
Lower emissions
Reduce fossil fuel dependence by preventing 42 tons of CO₂ emissions annually.
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Green jobs
Local jobs
Strengthen the circular economy and create 100 local jobs.
2027 · C40 Cities · GCoM
Dubai
Dubai is expanding its community parks to connect residents
- Country
- United Arab Emirates
- Climate topic
-
- Urban nature
In 2027, Dubai is building 6 new parks to give residents shared spaces close to home, improving quality of life and bringing neighbours together.
Backed by Dubai Future Foundation and private-sector partners, the programme is scaling up after a successful pilot phase.
2027 · GCoM
Entebbe
Entebbe is protecting communities from floods
- Country
- Uganda
- Region
- Africa
- Climate topics
-
- Adaptation and resilience
- Floods
In 2027, Entebbe Municipal Council will protect flood-prone communities by building nature-based drainage systems and flood-resilient public sanitation. The project will cut flooding and improve safe sanitation access to protect homes, roads, and health facilities in vulnerable lakeside areas.
What's happening in 2027
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Floods
Flood resilience
Protect flood-prone communities by building nature-based drainage systems and flood-resilient public sanitation.
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Adaptation and resilience
Protect homes and infrastructure
Cutting flooding and improve safe sanitation access to protect homes, roads, and health facilities.
2027 · GCoM · Mutirao
Florianópolis
Florianópolis is scaling up organic waste collection
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Waste management
In 2027, Florianópolis will expand organic waste collection by 20%, reaching at least 50% of municipal schools, and extend collection to seven communities in Maciço do Morro da Cruz.
The city will also launch a new programme to support local composting, increasing organic waste treatment and reducing the amount sent to landfill.
2027 · C40 Cities · GCoM
Fortaleza
Fortaleza is building an early warning system for extreme weather
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Early warning systems
In 2027, Fortaleza will have 20 weather stations feeding real-time data into an early warning system, helping Civil Defense reach people faster when extreme weather hits, including as a consequence of phenomena like Super El Niño.
The network will prioritise the areas most at risk, keeping the city’s most vulnerable residents well-prepared.
2026 · C40 Cities · GCoM
Fortaleza
Fortaleza acts to reduce emissions
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Community
- Reducing emissions
- Waste management
In 2026, Fortaleza will continue advancing toward the goal of reducing methane emissions from waste by up to 30% by 2030.
To achieve this, the city will implement biodigesters and composting systems for organic waste generated in street markets and public markets, as well as install and operate biodigesters in 164 municipal schools, strengthening Fortaleza’s sustainable waste management
Progress made
In 2026, Fortaleza installed biodigesters in 164 schools, turning food waste into a resource rather than landfill. The city is also beginning feasibility work on composting systems for organic waste from street and public markets. This is part of a broader push to cut methane emissions from waste by up to 30% by 2030.
2027 · C40 Cities · GCoM
Freetown
- Country
- Sierra Leone
- Region
- Africa
- Climate topics
-
- Clean energy
- Urban nature
- Water
How Freetown is doing it
Freetown is protecting its coastline and water systems.
In 2027, to ensure a water-safe city, Freetown will plant 200,000 additional mangroves across vulnerable coastal areas, building on the 1.2 million trees already planted out of its 5 million target. The city will also construct 24 new solar-powered water kiosks, expanding on the 65 already completed, bringing clean, safe and reliable water to over 7,000 underserved residents.
Freetown is expanding access to waste collection
In 2027, Freetown will bring private waste collection to 15% more residents, building on the 27,000 households (a quarter of the city population) already connected since the 2026 launch of the #DirtMusGo campaign. The push keeps the city on track for 60% citywide coverage by 2028, cutting illegal dumping, improving sanitation, and drawing more private investment into recycling.
2026 · C40 Cities · GCoM
Freetown
Freetown combats heat and waste
- Country
- Sierra Leone
- Region
- Africa
- Climate topics
-
- Adaptation and resilience
- Extreme heat
- Waste management
How Freetown is doing it
In 2026, Freetown will continue to focus on tackling heat and waste.
The city will intensify its efforts to protect the 35% of the population living in the city’s 82 informal settlements. This includes installing improved cold storage facilities in five markets, adding shade canopies and expanding cool roofing, all aimed at protecting our most vulnerable residents. At the same time, Freetown is addressing waste, the city’s second-largest source of emissions. In 2026, the city commits to reducing organic waste emissions by 25% by transforming waste into clean energy and expanding composting initiatives, paving the way toward a 40% reduction by 2028. In doing so, Freetown will advance the circular economy and create good green jobs within low-income communities.
2027 · GCoM
General Pico
General Pico is turning to solar
- Country
- Argentina
- Region
- Latin America
- Climate topics
-
- Clean energy
- Green jobs
- Reducing emissions
How General Pico is doing it
In 2027, General Pico will launch a new 100-hectare solar park, marking a historic milestone in the transition to clean energy. Generating up to 50 MW of renewable energy, the project will cut emissions, guarantee a clean local energy supply, and boost the regional economy by creating green jobs.
What's happening in 2027
-
Clean energy
Transition to clean energy
The city is launching a new 100-hectare solar park.
-
Reducing emissions
Cut emissions
The project will guarantee a clean local energy supply.
-
Green jobs
Create green jobs
Boost the regional economy by creating green jobs.
2026 · C40 Cities · GCoM
Guadalajara
Guadalajara expands its green spaces
- Country
- Mexico
- Region
- Latin America
- Climate topics
-
- Energy and buildings
- Extreme heat
- Urban nature
How Guadalajara is doing it
In 2026, Guadalajara will significantly boost public health and green space. The city is strengthening the Low-Emission Zone “Zona AIRE,” with new air quality monitoring and expanding pedestrian areas by 2,000m². Additionally, key public spaces like Plaza de la Liberación, Fundadores, Cabañas, and Paseo Degollado will undergo greening. Under the Carbon-Neutral Public Buildings Roadmap by 2050, the city will plant 20,000 new trees to combat urban heat islands, and by the end of 2026, we will upgrade three public buildings with energy-efficiency and renewable-energy measures.
2026 · GCoM
Guelph
Guelph scales up climate action
- Country
- Canada
- Region
- North America
- Climate topics
-
- Electrification
- Energy and buildings
- Transport
How Guelph is doing it
In 2026, Guelph will execute its Race to Zero commitment with bold, tangible action. This includes issuing an additional $4 million for the Guelph Greener Homes programme to fund energy upgrades and cut utility costs. Construction will begin on the new Guelph Transit and Fleet Services Facility, adding 50 electric chargers to support the ongoing transition and expansion of the city’s electric bus fleet.
Progress made
In 2026, Guelph helped residents meet the costs of energy efficiency upgrades through the Guelph Greener Homes programme. Construction also progressed on the new Guelph Transit and Fleet Services Facility, that will help expand public transit service and advance electric bus charging infrastructure.
What's happening in 2026
-
Energy and buildings
Guelph Greener Homes
The programme is funding energy upgrades and cutting utility costs.
-
Electrification
Electric buses
The city is expanding public transit service and advancing electric bus charging infrastructure.
-
Transport
New charging infrastructure
Guelph Transit and Fleet Services Facility is adding 50 electric chargers.
2027 · GCoM
Guelph
Guelph is doubling clean energy production
- Country
- Canada
- Region
- North America
- Climate topics
-
- Clean energy
- Just transition
- Reducing emissions
In 2027, Guelph is doubling its clean energy production. More solar panels are being installed and will generate 850kW additional capacity of clean renewable energy powering buildings, reducing emissions, and cutting energy costs.
What's happening in 2027
-
Energy and buildings
Install solar panels
Solar energy will power buildings and reduce emissions.
-
Clean energy
Double clean energy production
Generate 850kW additional capacity of clean renewable energy.
-
Just transition
Cut energy costs
Lowers costs for the people of Guelph.
2027 · C40 Cities · GCoM
Heidelberg
Heidelberg is decarbonising heating
- Country
- Germany
- Region
- Europe
- Climate topics
-
- Clean energy
- Reducing emissions
In 2027, Heidelberg will start building a river heat pump on the Neckar.
It’s part of the city’s wider plan to fully decarbonise heat supply by 2035. While the city’s heat is already 50% renewable, it’s scaling up with two 30MW heat pumps, one drawing from the river and one from wastewater, and giving residents a stake in the project through the Heidelberg KLIMA-INVEST scheme.
What's happening in 2027
-
Clean energy
Clean heating infrastructure
The City will build a heat pump on the Neckar River
-
Reducing emissions
Pathway to zero emissions
Clean heat will be scaled up with two 30MW heat pumps
-
Community
Strengthening equitable solutions
Residents will have a stake in clean energy through the KLIMA-INVEST scheme
2027 · GCoM
Hobart
Hobart is pioneering a partnership for bushfire resilience
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Adaptation and resilience
- Extreme heat
- Just transition
In 2027, the City of Hobart together with Kingborough Council, a local insurer, and the University of Tasmania, will deliver an Australian first bushfire resilience pilot, helping households in high-risk urban bushland communities understand and reduce their bushfire risk. Combining practical property assessments, risk mapping, targeted hazard reduction and independent research, the partnership creates a scalable model for community resilience that could also improve access to affordable insurance.
What's happening in 2027
-
Extreme heat
Bushfire resilience pilot
The pilot helps households in high-risk urban bushland communities understand and reduce their bushfire risk.
-
Adaptation and resilience
Community resilience
The partnership creates a scalable model for community resilience.
-
Just transition
Affordable insurance
The pilot could improve access to affordable insurance.
2026 · GCoM
Hobart
Hobart grows a greener future
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Extreme heat
- Transport
- Urban nature
How Hobart is doing it
In 2026, Hobart will accelerate its strategy to become a zero emissions, resilient city by 2040. The city is using AI mapping to guide urban greening, addressing areas with canopy cover as low as 7% in the CBD and pushing toward a 40% canopy target by 2046. Hobart will also introduce a new policy encouraging the development of more than 3,000 dwellings across the city by 2040. This is a critical move to protect natural areas and make life easier and cheaper for residents by supporting efficient public transport, walking, and cycling.
Progress made
In 2026, Hobart launched AI-guided tree canopy mapping to inform urban greening priorities throughout the city. Hobart also expanded housing supply in well-connected areas, encouraging walking, cycling, and public transit use while safeguarding Hobart’s surrounding natural landscapes.
What's happening in 2026
-
Extreme heat
Tree canopy mapping
Mapping will inform urban greening priorities throughout the city.
-
Transport
Expanding housing supply
Encouraging walking, cycling, and public transit by expanding housing in well-connected areas,
-
Urban nature
Safeguard natural landscapes
Protecting nature surrounding the city.
2027 · GCoM
Hobart
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topic
-
- Extreme heat
In 2027, the City of Hobart together with Kingborough Council, a local insurer, and the University of Tasmania will deliver an Australian-first bushfire resilience pilot, helping households in high-risk urban bushland communities understand and reduce their bushfire risk.
Combining practical property assessments, risk mapping, targeted hazard reduction and independent research, the partnership creates a scalable model for community resilience that could also improve access to affordable insurance.
2027 · C40 Cities · GCoM
Hong Kong
Hong Kong, China is expanding electric vehicle charging infrastructure
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Clean energy
- Fossil fuels
- Transport
In 2027, Hong Kong will expand its EV charging infrastructure to around 200,000 parking spaces, including and around 20,000 public chargers, all together supporting more than 300,000 electric vehicles.
2026 · C40 Cities · GCoM
Hong Kong
Hong Kong powers up energy efficiency
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Clean energy
- Energy and buildings
In 2026, Hong Kong will continue efforts on energy saving in buildings.
By then, Hong Kong’s Buildings Energy Efficiency (Amendment) Bill 2025 will fully come into effect, expanding the scope of regulation to data centres and more types of buildings, shortening the energy audit intervals, and mandating the disclosure of information in energy audit reports. It is estimated that an additional 500 million kilowatt-hours of electricity, equivalent to the annual electricity consumption of about 150,000 households, will be saved by 2035.
2027 · GCoM
Honiara City Council
Honiara is cleaning and greening its streets
- Country
- Soloman Islands
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Adaptation and resilience
- Community
- Waste management
In 2027, Honiara City will partner with its communities to create a healthier and safer city through the ‘ADOPT A Street’ campaign. Bringing together local leaders, residents, and youth groups across 15 streets in Honiara’s CBD and residential areas, community-driven cleanups will protect waterways, streets, and footpaths to improve air quality, boost resilience, and reduce disaster risks.
What's happening in 2027
-
Community
"Adopt A Street" campaign
The campaign brings together local leaders, residents, and youth groups.
-
Waste management
Community-driven cleanups
The cleanups will help protect waterways, streets, and footpaths.
-
Adaptation and resilience
Boost resilience
The City is improving air quality and reducing disaster risk.
2026 · C40 Cities · GCoM
Istanbul
Istanbul launches low emission zone
- Country
- Türkiye
- Region
- Europe
- Climate topic
-
- Air quality
Istanbul is set to transform its Historic Peninsula by the end of 2026 with the launch of the Low Emission Zone (LEZ), a key part of Turkey’s first Sustainable Urban Mobility Plan for a megacity.
This decisive project aims to improve local air quality by phasing out polluting vehicles and boosting public and active transportation. Once activated, the LEZ is projected to deliver a massive impact: reducing traffic congestion by up to 20% and cutting annual carbon emissions by approximately 1 million tons.
Progress made
In 2026, Istanbul continued laying the groundwork for a Low Emission Zone across the Fatih, Beyoğlu, and Kadıköy districts. Feasibility studies are underway and due to be completed in October.
2027 · C40 Cities · GCoM
Istanbul
Istanbul is bringing bike sharing to every district
- Country
- Türkiye
- Region
- Europe
- Climate topic
-
- Transport
In 2027, Istanbul will expand its bike-sharing system, launched in 2026 with 2,400 e-bikes across 17 districts, to every district of the city, adding more electric bicycles and giving residents an easy, low-carbon way to make short trips and connect to public transport.
What's happening in 2027
-
Transport
2,400 e-bikes across 17 districts were launched in 2026
-
Adaptation and resilience
The City will build on last year’s launch and expand its bike sharing system
-
Community
Residents will have better access to easy, low-carbon ways of travel
2027 · C40 Cities · GCoM
Karachi
Karachi is investing in solar power
- Country
- Pakistan
- Region
- South and West Asia
In 2027, Karachi is investing in solar power for its street lights and parks. Alongside this, the city is investing in new urban parks and forests as part of wider efforts to green the city.
2027 · GCoM
Khmelnytskyi
Khmelnytskyi is transforming waste management
- Country
- Ukraine
- Region
- Europe
- Climate topics
-
- Just transition
- Reducing emissions
- Waste management
How Khmelnytskyi is doing it
In 2027, Khmelnytskyi will complete the rehabilitation of its old landfill, reducing environmental and public health risks.
By modernising the waste management system, the city is reducing 100,000 tonnes of CO2 emissions annually, preventing soil and water contamination, and improving air quality. More than 300,000 residents will benefit from a safer, healthier environment, while biodiversity and local ecosystems will be protected.
2026 · C40 Cities · GCoM
London
London commits to cleaning its rivers
- Country
- United Kingdom
- Region
- Europe
- Climate topics
-
- Adaptation and resilience
- Water
How London is doing it
London has cleaned up its air, now it’s cleaning up its rivers.
In 2026, London will launch the Clean and Healthy Waterways Plan, a world-first 10-year strategy to clean all 41 of London’s rivers by 2036. Working with over 50 partners, the plan tackles sewage and runoff pollution, boosts wildlife, and makes rivers clean enough to swim in. Building on the Thames Tideway Tunnel’s success, it will add natural drainage to reduce flooding, reintroduce native species, improve wayfinding to rivers via Tube stations, and engage 1,000 volunteers and young Londoners in restoring nature across the capital.
Progress made
In 2026, London launched the Clean Rivers and Waterways Plan, one of the most ambitious plans of its kind, shaped with over 50 partners. The 10-year plan prioritises cutting pollution, reviving nature, restoring public access and ensuring everyone can enjoy the city’s waterways safely. Ten strategic locations have been identified based on deprivation, access, water quality and nature, prioritising funding where it’s needed most.
2027 · C40 Cities · GCoM
London
- Country
- United Kingdom
- Region
- Europe
- Climate topics
-
- Clean energy
- Extreme heat
- Public health
London is building a climate-resilient future
In 2027, London will bring together partners from different sectors to coordinate and drive action on Heat Ready London, the capital’s first heat plan, focusing on reducing overheating in homes, schools, hospitals, care settings and public spaces. The city will also expand greening and shade, and build the funding model needed to scale heat-resilient housing for the most vulnerable communities.
London is driving investment in net zero
In 2027, London will continue to support public sector organisations through the Green Finance Fund, with more than GBP 346 million already committed to 15 projects delivering energy efficiency upgrades, zero-emission transport, and renewable energy. The fund is expected to cut emissions by nearly 39,000 tonnes of CO₂ annually, equivalent to taking almost 24,000 cars off city roads, while lowering energy costs and supporting green jobs.
What's happening in 2027
-
Extreme heat
London's first heat plan
The City and partners will collaborate and drive action on Heat Ready London
-
Community
Strengthening resilience
Greening and shade will be expanded to protect residents
-
Governance
Reducing emissions
The Green Finance Fund will cut emissions across the city, lower energy costs and support green jobs
2026 · C40 Cities · GCoM
Medellín
Medellín is restoring its waterways
- Country
- Colombia
- Region
- Latin America
- Climate topic
-
- Water
In 2026, Medellín is taking bold action to restore its rivers, streams and watersheds.
Through the Mis Ríos, Mis Quebradas programme, the city is combining ecosystem restoration, nature-based solutions and community engagement to recover strategic waterways and protect vulnerable residents from flooding and climate risk. Alongside this, the Primavera Norte project is embedding sustainable urban drainage and green infrastructure into one of the city’s priority regeneration areas — improving stormwater management, restoring natural water cycles and enhancing public spaces for communities most exposed to extreme rainfall.
2026 · C40 Cities · GCoM
Melbourne
Melbourne invests in climate action
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Clean energy
- Energy and buildings
In 2026, Melbourne will invest $44.3 million to create a greener city.
This includes delivering six green spaces, advancing designs for ten more and planting 3,000 new trees. The city will also complete the first phase of the Greenline project, providing new boardwalks and promenades for residents to enjoy. The city is also committed to getting its top 10 gas-consuming municipal buildings off gas by 2030 and delivering on its plan to power city buildings with 100% renewable electricity. In 2026, they will begin electrifying 11 sites, including the iconic Melbourne Town Hall, projected to reduce the city’s carbon footprint by 565 tonnes of CO2-e annually.
Progress made
In 2026, Melbourne added 6,000m² of new green open space in priority areas, while also approving 11 new and renewing 5 existing community greening permits across the city. Thanks to the Garden City Community Greening guidelines, communities outside the central city can now do their own greening without permits. The first phase of the Greenline project is complete, opening new boardwalks and promenades for residents.
Melbourne is also on track to remove gas equipment and power city buildings with 100% renewable electricity. The city has selected a preferred contractor for its 10 electrification sites following a thorough scoping process, with works expected to begin in September-October 2026.
2027 · C40 Cities · GCoM
Melbourne
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Adaptation and resilience
- Energy and buildings
- Extreme heat
Melbourne is future-proofing its infrastructure
In 2027, Melbourne will reduce the risk of extreme heat and flooding by embedding mandatory climate-resilient design for all new and upgraded municipal infrastructure. These new standards prioritise climate justice by improving heating, cooling and flood resilience for public services and the people who rely on them most.
Melbourne is modernising commercial buildings
In 2027, Melbourne will help owners of privately owned commercial buildings cut emissions through the Retrofit Melbourne Financial Incentive Scheme. The three-year pilot will facilitate energy assessments, planning, and building upgrades. It’s expected to cut over 4,400 tonnes of emissions over 10 years and move the city closer to zero-carbon. In its first year, the scheme will target approximately 400 eligible buildings.
2026 · C40 Cities · GCoM
Milan
Milan accelerates climate plans
- Country
- Italy
- Region
- Europe
- Climate topics
-
- Air quality
- Energy and buildings
In 2026, Milan will take further steps in cleaning up Milan’s air by reinforcing the EU’s largest Low Emission Zone, known as Area B, which covers more than 128 km² of Milan.
Meanwhile, more Milanese residents, businesses, nonprofit entities and public bodies will join the city’s pioneering Solidarity Renewable Energy Community programme: generating energy from solar panels on local buildings, while investing surplus and economic benefits back into community projects
Progress made
In 2026, Milan strengthened its Low Emission Zone, keeping high-polluting vehicles off city streets in new low-traffic zones in the city’s fashion district and Isola. A regional diesel ban is set to follow in October. Alongside this, Milan’s community energy network has grown to 121 members and 1.2 MW of solar power. Four local projects funded through the scheme are now helping vulnerable families cut energy costs and fight energy poverty.
2027 · C40 Cities · GCoM
Milan
Milan is building heat and flood defences
- Country
- Italy
- Region
- Europe
- Climate topics
-
- Extreme heat
- Urban nature
- Water
In 2027, Milan is expanding its “sponge city” programme, having depaved over 50,000 sqm and completed more than 70 projects between 2022 and 2025.
The city will invest over €10 million in about 10 new major interventions to replace asphalt with permeable surfaces and green spaces. Guided by heat and social vulnerability data, the work will prioritise schools, health centres and social care facilities, cutting flood risk and urban heat for those most impacted, and boosting biodiversity.
What's happening in 2027
-
Adaptation and resilience
'Sponge City' programme
Over €10 million will be invested into 10 new major projects
-
Community
Putting people first
Schools, health centres and social care facilities will be prioritised
-
Urban nature
Upgrading public spaces
Adding permeable surfaces and green spaces will reduce flood risk and urban heat, and boost biodiversity
2027 · GCoM · Mutirao
Montes Claros
Montes Claros is going electric
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Air quality
- Transport
In 2027, Montes Claros will make progress on fully electrifying its public transport, continuing the replacement of 100 diesel buses with electric vehicles and installing the charging infrastructure needed for their operation. The shift will reduce greenhouse gas emissions, air pollution and noise, while making public transport more comfortable, safe and reliable.
2026 · C40 Cities · GCoM
Mumbai
Mumbai takes bold action for cleaner air
- Country
- India
- Region
- South and West Asia
- Climate topic
-
- Air quality
How Mumbai is doing it
In 2026, Mumbai will launch a major initiative to improve air quality and transportation.
The city will install 75 low-cost air quality sensor (LCS) monitors and develop a new 72-hour forecasting system to better understand and manage air pollution. Mumbai will significantly expand its public bus fleet to over 9,892 vehicles, with more than 8,424 of them being electric by the end of 2026. This will make nearly 85% of the fleet zero-emission, providing cleaner transport for almost four million daily passengers.
Progress made
In 2026, Mumbai installed 75 air quality sensors planned under its MANAS project, covering a 2.5km by 2.5km grid and monitoring pollution patterns citywide. The city is also building AIRWISE, a 72-hour air quality forecasting system. A basic system is in place, with an emissions survey powering the forecasts expected to finish within six months.
2027 · C40 Cities · GCoM
Mumbai
Mumbai is upgrading public buildings
- Country
- India
- Region
- South and West Asia
- Climate topics
-
- Clean energy
- Energy and buildings
- Extreme heat
In 2027, Mumbai will make public buildings more heat-resilient, starting with reflective roof coatings on 65 school buildings to cut heat absorption and improve student comfort.
The city will also install 700kW of solar panels at Fire Brigade offices and the city’s Printing Press, cutting emissions and grid electricity use.
2026 · GCoM
Mykolaiv
Mykolaiv rebuilds a resilient future
- Country
- Ukraine
- Region
- Europe
- Climate topics
-
- Adaptation and resilience
- Clean energy
- Urban nature
In 2026, Mykolaiv will advance its long term recover plan, by preparing a new Master Plan for reconstruction. This plan will prioritise resilient infrastructure, energy, greener public spaces and water security. The city will also strengthen energy resilience by equipping additional medical facilities with solar power and battery storage to function during emergencies and outages. Mykolaiv will repair its natural areas through demining, and will plant over 1,000 oak acorns and 100 fruit tree seedlings, demonstrating the city’s commitment to a sustainable and resilient future.
What's happening in 2026
-
Adaptation and resilience
New Master Plan
The plan will prioritse resilient infrastructure, energy, greener public spaces and water security.
-
Clean energy
Strengthen energy resilience
The city will equip medical facilities with solar power and battery storage.
-
Urban nature
Repair natural areas
By demining, and planting tree seedlings, the city is repairing its natural areas.
2026 · C40 Cities
Nanjing
Nanjing pioneers new resilience action
- Country
- China
- Region
- Central East Asia
- Climate topic
-
- Energy and buildings
In 2026, Nanjing is pioneering a green revolution by fusing resilience with economy.
The city is systematically advancing Sponge City projects and expanding its network of 108 Green Factories and six Green Industrial Parks. Building on 210 million square meters of certified green building area, Nanjing is committing to ensuring that 100% of new urban construction will meet green standards. This integrated approach ensures the city is resilient against climate shocks while driving the transformation of its industries.
2027 · C40 Cities
Nanjing
Nanjing is accelerating its transition to a low-carbon city
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Adaptation and resilience
- Clean energy
- Fossil fuels
In 2027, Nanjing will implement its ‘Green, Low-Carbon and Energy’ Five-Year Plan, driving a city-wide shift toward greener production and lifestyles, reducing major pollutant emissions and working toward its carbon peak target on schedule.
2027 · GCoM
Oreamuno
Oreamuno is protecting farming communities
- Country
- Costa Rica
- Region
- Latin America
- Climate topics
-
- Adaptation and resilience
- Floods
- Waste management
In 2027, the Canton of Oreamuno’s Caminos Verdes project will reduce flooding risk, safeguarding 25,000 residents across four agricultural communities. Using a comprehensive drainage system to minimise soil erosion, the Municipality will upgrade roads and build new water management infrastructure. Oreamuno will also launch an organic waste composting center, embedding circular economy practices to protect soil and strengthen long-term climate resilience.
What's happening in 2027
-
Floods
Caminos Verdes project
The Canton of Oreamuno’s project will reduce flooding risk and safeguard residents.
-
Adaptation and resilience
Upgrade infrastructure
The Municipality will improve drainage, upgrade roads and build new water management infrastructure.
-
Waste management
Organic waste center
Oreamuno will launch an organic waste composting center, embedding circular economy practices.
2026 · C40 Cities · GCoM
Oslo
Oslo acts to further reduce emissions
- Country
- Norway
- Region
- Europe
- Climate topics
-
- Energy and buildings
- Reducing emissions
Oslo has pioneered clean construction in city-owned construction. Through a new local regulation, the city is taking clean construction city-wide.
In 2026, Oslo will prepare the construction market for the coming requirements for electric and biogas machinery. When fully implemented, it will cut more than 10% of Oslo’s total emissions. In construction, the city is also going after the indirect emissions. Through procurement, Oslo will in 2026 require that city-owned projects reduce the carbon footprint from materials by 30%.
2027 · C40 Cities · GCoM
Oslo
Oslo is scaling up solar power
- Country
- Norway
- Region
- Europe
In 2027, Oslo will scale up solar power with a new target to increase solar capacity tenfold by 2040.
To support electrification, Oslo will combine energy efficiency measures, smarter energy use, and more renewables. Solar power works even in a northern city, and by using existing grey surfaces, Oslo can generate clean energy without adding pressure on nature and biodiversity.
What's happening in 2027
-
Clean energy
Expanding solar power
Solar power capacity will be increased tenfold by 2040
-
Electrification
Strengthening electrification
Energy efficiency measures, smarter energy use and more renewables will support electrification across the city
-
Urban nature
Protecting urban nature
Using existing grey surfaces, the City can generate clean energy without adding additional pressure on nature and biodiversity
2026 · C40 Cities · GCoM
Paris
Paris is turning climate ambition into action
- Country
- France
- Region
- Europe
- Climate topic
-
- Energy and buildings
In 2026, Paris will retrofit 5,000 more social homes as part of an ongoing effort to cut energy consumption in social housing by 35% by 2030 and 50% by 2050.
Meanwhile, 29,000 co-owned properties will also undergo environmental renovation projects, cutting bills for residents and emissions for the city. 2026 will also see a new green space developed at Place du Colonel Fabien, transforming one of the city’s most congested areas into a cool oasis of tranquillity. For the areas in which it is not possible to plant trees, new cooling pagodas will be installed around the city.
Progress since 2025
In 2026, Paris transformed Colonel-Fabien Square, remodelling a roundabout into a public square and urban forest, depaving 4,800m² and planting 74 trees, part of a city-wide greening effort that has seen Paris create dozens of new parks and plant tens of thousands of trees since 2020. The city also added 412 metres of cycling lanes and 980m² of pedestrian space this year. In parallel, Paris renovated 5,000 social homes in 2026, with 30,000 private homes now supported by the EcoRénovons Paris+ renovation scheme.
2027 · C40 Cities · GCoM
Paris
Paris is preparing public buildings for extreme heat
- Country
- France
- Region
- Europe
- Climate topics
-
- Early warning systems
- Energy and buildings
- Extreme heat
In 2027, Paris will strengthen its public plan against extreme heat, renovating schools, nurseries and municipal buildings, applying lessons learned from 2026’s summer heatwaves.
The plan combines practical fixes such as ceiling fans, blinds, and 100 new shading structures in public spaces, with a growing network of emergency cool havens and a commitment to provide a cooled room in every school, nursery and middle school in the city by the end of the year.
What's happening in 2027
-
Extreme heat
Renovating schools
Schools, nurseries and municipal buildings will be renovated as part of the City’s public plan against extreme heat
-
Adaptation and resilience
Upgrading public spaces
Practical fixes such as ceiling fans, blinds and shading structures will be added to public spaces
-
Community
Expanding cool havens
The City’s network of emergency cool havens will grow, ensuring every school, nursery and middle school will have a cooled room
2027 · C40 Cities
Phoenix
Phoenix is delivering water security
- Country
- USA
- Region
- North America
- Climate topic
-
- Water
In 2027, Phoenix will complete the first of three Pure Water facilities, using some of the world’s most advanced recycling technology to improve water security and conservation.
It will initially produce nearly 7 million gallons (265 million litres) of purified drinking water a day, enough for 25,000 households. As the climate grows drier, the city is also expanding efficiency upgrades and incentives for residents to save water
2026 · C40 Cities · GCoM
Phoenix
Phoenix takes action to tackle extreme heat
- Country
- USA
- Region
- North America
- Climate topic
-
- Extreme heat
Protecting residents from extreme heat through short- and long-term strategies is a top priority for Phoenix.
In 2026, Phoenix will continue expanding resources to provide immediate relief during periods of extreme heat, including offering evening and overnight respite for an estimated 5,000 residents, heat relief training to city employees, and innovative cooling techniques used by paramedics responding to heat emergencies. This year will mark the second of the city’s five-year plan, Shade Phoenix, to add natural and built shade in the areas that need it most. Phoenix will also continue to pilot cool surface technologies to protect residents and infrastructure.
2027 · GCoM · Mutirao
Porto Alegre
Porto Alegre is improving waste management
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Waste management
In 2027, Porto Alegre will expand decentralised organic waste management in schools, adding at least five new composting units and gradually scaling up the use of biodigesters. The initiative will reduce waste sent to landfills and cut emissions, while producing biogas and fertiliser for use in schools in a replicable, educational model.
2027 · GCoM
Pulynska Hromada
Pulyny is strengthening natural climate defences
- Country
- Ukraine
- Region
- Europe
- Climate topics
-
- Adaptation and resilience
- Urban nature
- Water
In 2027, the rural community of Pulyny, part of Zhytomyr Oblast, will transform the Tenka River into a natural climate defense.
Through riverbed restoration, repairs to ageing water-control structures, the revival of a cascade pond, and an expanded green corridor, this nature-based model will retain water during dry periods, reduce overheating, and support biodiversity.
2027 · C40 Cities
Qingdao
Qingdao is restoring its waterways
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Urban nature
- Water
In 2027, Qingdao will accelerate the restoration of its rivers, lakes, and bays, focusing on 66 key water monitoring sites.
The city will also strengthen ecological protection in Jiaozhou Bay and complete new coastal restoration projects along Laoshan Bay and its east and west coastlines.
2027 · C40 Cities
Quito
Quito is strengthening its early warning systems
- Country
- Ecuador
- Region
- Latin America
- Climate topics
-
- Adaptation and resilience
- Early warning systems
In 2027, Quito is strengthening its early warning systems by designing a Metropolitan Multi-Hazard Early Warning System, prioritising its most at-risk communities.
The city is already laying the groundwork, using technical assistance from C40 Cities for the system’s roadmap. To better manage risk, Quito has already strengthened 147 community committees to sharpen local emergency response.
2026 · C40 Cities · GCoM
Quito
Quito pledges bold climate action
- Country
- Ecuador
- Region
- Latin America
- Climate topics
-
- Transport
- Urban nature
- Water
How Quito is doing it
Under its Climate Action Plan (PACQ), the Metropolitan District of Quito is strengthening its commitment to a healthier, greener, and more resilient urban future.
The city will construct four major wastewater treatment plants, beginning with the Cumbayá–Tumbaco facility in 2026, and finalize the Calderón Drinking Water Treatment Plant. Through the “Quito, Greener Than Ever” initiative, 100,000 native trees will be planted to restore fire-affected areas and improve biodiversity. During 2026, new electric buses will be integrated into the public transport system. That same year, Quito will begin developing a new environmental complex for waste treatment using sustainable technologies.
Progress update
In 2026, Quito is moving forward on three major sanitation projects that, once operational, will bring the city’s wastewater treatment coverage to 85%. These projects are progressing through their feasibility studies and environmental licensing stages, ahead of construction.
The city has also completed designs for treatment plants in four parishes, with construction set to begin in 2027. This work will help restore the Machángara, Monjas and San Pedro rivers and improve sanitation across the district.
What's happening in 2026
Under its Climate Action Plan (PACQ), the Metropolitan District of Quito is strengthening its commitment to a healthier, greener, and more resilient urban future.
-
Urban nature
Greener than ever
Through the “Quito, Greener Than Ever” initiative, 100,000 native trees will be planted to restore fire-affected areas and improve biodiversity.
-
Water
Drinking water
The city will construct four major wastewater treatment plants, beginning with the Cumbayá–Tumbaco facility in 2026, and finalize the Calderón Drinking Water Treatment Plant.
-
Transport
Electric buses
During 2026, new electric buses will be integrated into the public transport system.
-
Green jobs
Sustainable technologies
Quito will begin developing a new environmental complex for waste treatment using sustainable technologies.
2027 · GCoM
Renca
Renca is improving water circulation
- Country
- Chile
- Region
- Latin America
- Climate topics
-
- Adaptation and resilience
- Extreme heat
- Water
In 2027, Renca will introduce a circular economy solution to tackle Chile’s water crisis by using treated industrial wastewater in Cerros de Renca Metropolitan Park.
This system will sustainably irrigate over 80,000 trees and prevent forest fires without using any drinking water, democratising access to nature for nearly 2 million people.
2027 · GCoM · Mutirao
Rio Branco
Rio Branco is scaling up organic waste recycling
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Waste management
In 2027, Rio Branco will expand its Municipal Programme for the Reduction and Recycling of Wet Waste by modernising and increasing the capacity of its existing composting system. By diverting 15% of citywide organic waste from landfill to composting, the initiative will cut pollution and emissions, extend landfill lifespan, create green jobs, and transform illegal dumping sites into productive spaces.
2026 · C40 Cities · GCoM
Rio de Janeiro
Rio de Janeiro expands city climate action
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Air quality
- Clean energy
- Early warning systems
In 2026, Rio will transform part of its downtown area into the city’s first Low-Emission District (LED).
This project will add walking and cycling paths, improve public transport, and create green spaces to clean up the air, all while remaining a bustling hub for business and culture. Rio is also preparing for a more resilient future. Next year, we will start a new flood warning system that uses real-time data to protect its most at-risk communities. The Solário Carioca project, which began in 2025, will continue to expand its solar power system, providing cheaper and cleaner energy to municipal buildings.
2027 · C40 Cities · GCoM
Rio de Janeiro
Rio is reducing climate risk
- Country
- Brazil
- Region
- Latin America
In 2027, Rio will publish its Climate Budget, aligning public spending with emissions reduction targets, climate risk management and the protection of vulnerable residents.
The city will advance its climate agenda by revitalising Avenida Chile, located within the city’s Low Emission District. Rio will also expand its electric bus fleet, with 175 new vehicles expected to begin operating in the second half of 2027, as part of its goal to have at least 20% of municipal buses running on electricity by 2030.
2027 · C40 Cities · GCoM
Rome
Rome is expanding cool spaces
- Country
- Italy
- Region
- Europe
- Climate topics
-
- Extreme heat
- Urban nature
How Rome is doing it
In 2027, Rome will expand its network of free-access climate shelters as part of the city’s new Heat Plan, building on 178 facilities already mapped in 2026, alongside over 400 green spaces and 3,000 drinking fountains.
The city wants to ensure that every resident is within a 15-minute walk of somewhere cool, prioritising its most vulnerable neighbourhoods.
What's happening in 2027
-
Extreme heat
Planning for extreme heat
The City’s new Heat Plan will expand its network of free-access climate shelters
-
Urban nature
More parks, more fountains
Over 400 green spaces and 3,000 drinking fountains will be added
-
Community
Access to cool spaces
Ensuring every resident is within a 15-minute walk of somewhere cool
2026 · C40 Cities · GCoM
Rotterdam
Rotterdam action on zero-emission transport
- Country
- Netherlands
- Region
- Europe
- Climate topics
-
- Electrification
- Just transition
- Transport
How Rotterdam is doing it
Rotterdam is wiring the future of mobility, ensuring zero-emission transport works for every resident and business.
Rotterdam has already installed over 8,000 public charging points, guaranteeing everyone is within 200 meters of a station. The city is now drastically expanding this network with 1,000 new points, 80 fast chargers, and three heavy-duty locations to support clean port freight by 2026. This is smart infrastructure, fueled by innovation like utilising unused metro capacity, making the entire city cleaner and strengthening the green.
What's happening in 2026
-
Electrification
Public charging points
Rotterdam has already installed over 8,000 public charging points, guaranteeing everyone is within 200 meters of a station.
-
Transport
Growing network
Drastically expanding this network with 1,000 new points, 80 fast chargers, and three heavy-duty locations to support clean port freight by 2026.
-
Just transition
Smart infrastructure
This is smart infrastructure fueled by innovation, like utilising unused metro capacity.
2027 · C40 Cities · GCoM
Salvador
Salvador is going electric and building with nature
- Country
- Brazil
- Region
- Latin America
- Climate topics
-
- Early warning systems
- Transport
- Urban nature
How Salvador is doing it
In 2027, Salvador will put 100 new electric buses on the city’s roads and advance an urban renewal project using nature-based solutions across 2,752 km², reaching more than 22,000 residents.
2026 · C40 Cities · GCoM
Santiago de Chile
Santiago de Chile reforests the city
- Country
- Chile
- Region
- Latin America
How Santiago de Chile is doing it
In 2026, Santiago will complete the first phase of the Pocket Forests program, an initiative that aims to create 33 small native forests in neighbourhoods with limited green areas and high exposure to extreme heat.
These Pocket Forests are a key measure for climate adaptation, helping the city respond to rising temperatures and environmental stress. Through this initiative, we will plant more than 30,000 native trees, expanding equitable access to nature, improving air quality, enhancing local biodiversity, and strengthening urban resilience.
Progress update
In 2026, Santiago built 32 pocket forests across the Metropolitan Region, turning unused urban spaces into green havens that cool neighbourhoods, boost biodiversity and soak up stormwater, while helping the city cope with urban heat. These spaces are within walking distance for more than 1.9 million residents, improving access to nature and wellbeing. Community planting events have helped build stronger local ties.
What's happening in 2026
-
Urban nature
Green havens
Unused urban spaces turned into green havens that cool neighbourhoods, boost biodiversity and soak up stormwater
-
Extreme heat
Native forests
Planting small native forests help the city cope with urban heat
-
Community
Community planting
Community planting events helped build stronger local ties.
2027 · C40 Cities · GCoM
Santiago de Chile
Santiago is turning public hospitals into green sanctuaries for climate resilience
- Country
- Chile
- Climate topic
-
- Extreme heat
In 2027, Santiago will roll out 17 “healing gardens” across public hospitals.
Connecting public health, green infrastructure, and adaptation, these nature-based spaces are designed to ease the impacts of extreme heat on hospitals, boosting resilience and offering a model for other cities to replicate.
2026 · C40 Cities · GCoM
São Paulo
São Paulo announces new climate action
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Governance
São Paulo is taking further steps to meet their climate goals by implementing their first Climate Budget in 2026. This will create a new phase of climate governance, allowing São Paulo to plan and allocate funds in more detail for public policies that combat climate change, ensuring it stays on track to meet the goals of the Paris Agreement.
Progress update
In 2026, São Paulo advanced the implementation of its first Climate Budget, embedding climate action directly into the city’s 2026–2029 budget planning. The Climate Budget Intersectoral Management Committee brings together various stakeholders, overseeing how climate goals are funded and tracked, helping ensure climate commitments are backed by real budget decisions and enhancing transparency through the public disclosure of information and documents.
What's happening in 2026
-
Governance
Embedding climate action
Advanced the implementation of its first Climate Budget
-
Governance
Enhancing transparency
The Climate Budget Intersectoral Management Committee ensures climate commitments are backed by real budget decisions and enhances transparency
2027 · C40 Cities · GCoM
São Paulo
São Paulo is expanding its electric bus fleet
- Country
- Brazil
- Region
- Latin America
- Climate topic
-
- Transport
How São Paulo is doing it
In 2027, São Paulo will continue electrifying Brazil’s largest bus fleet, adding at least 517 new electric buses.
The city’s more than 2,000 electric buses are already saving around 70 million litres of diesel and avoiding the emission of 174,000 tonnes of CO₂ every year. The expansion means cleaner air and real health benefits for the city’s most vulnerable residents.
2026 · C40 Cities · GCoM
Seoul
Seoul is accelerating climate action
- Country
- South Korea
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Energy and buildings
- Governance
- Reducing emissions
How Seoul is doing it
In 2026, Seoul will hire 100 more low-income residents for our job-creating, climate-combating Energy Seoul Support Group.
This program is a powerful win-win for people and the planet. The Group has already built a track record of success since 2023, hiring 240 workers to install insulation, making 5,267 homes warmer and cutting 1,412 tonnes of carbon. It is this sustained, annual commitment, including improving window insulation in 1,500 low-income households each year, that makes the city’s long-term climate plan achievable, resulting in expected emissions reductions of 401 tons of CO₂e annually.
Progress made
In 2026, Seoul delivered insulation upgrades to 7,364 homes and cut an estimated 1,971 tonnes of CO2e.
The city recruited 61 out of the target 100 low-income residents to the Energy Seoul Support Group. Since 2023, the programme has run seven times, employing 392 people in total, with 70% returning for two or more rounds.
What's happening in 2026
-
Energy and buildings
Energy Seoul Support Group
Seoul will hire 100 more low-income residents for our job-creating, climate-combating Energy Seoul Support Group
-
Reducing emissions
Warmer homes
Since 2023, 240 workers installed insulation making 5,267 homes warmer and cutting 1,412 tons of carbon
-
Reducing emissions
Achievable climate plan
Expected emissions reductions of 401 tons of CO₂e annually
2027 · C40 Cities · GCoM
Seoul
Seoul is building heat and flood protections
- Country
- South Korea
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Early warning systems
- Extreme heat
In 2027, Seoul will protect residents from extreme weather by continuing the rollout of its AI-powered flood early warning system, and advancing major drainage infrastructure in three high-risk areas: Gangnam Station, Gwanghwamun and Dorimcheon Stream.
The city also provides approximately 4,000 cooling shelters, helping keep vulnerable residents safe as temperatures rise.
2027 · GCoM
Sheki
Sheki is expanding climate-resilient green spaces
- Country
- Azerbaijan
- Region
- Europe
- Climate topics
-
- Adaptation and resilience
- Just transition
- Urban nature
In 2027, Sheki will expand public green spaces and make them more accessible for residents and visitors.
By introducing drought-resistant plants, energy-efficient lighting, and drip irrigation systems, the city will optimise water efficiency, lower energy consumption, and build environmental resilience across public green spaces. The city will also restore the historic Summer Theatre located in an expanding green space, preserving Sheki’s cultural heritage.
2026 · C40 Cities
Shenzhen
Shenzhen scales up action on air quality
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Air quality
- Electrification
Shenzhen, known as the electrification capital of China, will significantly increase its number of new energy vehicles to reduce air pollution and promote low-carbon development.
With their current fleet of over 1.44 million new energy vehicles, their new goal is to reach over 1.7 million by the end of 2026. This ambitious plan not only elevates Shenzhen’s green and low-carbon development but also continues to drastically improve air quality for all residents.
Progress update
In 2026, Shenzhen continued to lead China’s shift to electric vehicles. By June, the city met its annual target ahead of schedule with almost 1.8 million EVs on city roads and 83% of new vehicles sold were electric. The city also published localised carbon emission data for key road vehicles, giving businesses the information they need to cut emissions across their supply chains.
What's happening in 2026
-
Electrification
New energy vehicles
Met annual electric vehicles target ahead of schedule
-
Reducing emissions
Supply chains
The city also published localised carbon emission data for key road vehicles to help businesses cut emissions across their supply chains
2027 · C40 Cities
Shenzhen
Shenzhen is tackling the most carbon polluting vehicles
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Reducing emissions
- Transport
In 2027, Shenzhen will shift its carbon emissions focus to heavy-duty trucks, terminal tractors and other big polluters.
The city is aiming to raise the share of new energy heavy-duty trucks from 5% to 9%, while exploring the creation of zero-carbon transport corridors.
2027 · GCoM
Sofia
Sofia is expanding extreme weather protections
- Country
- Bulgaria
- Region
- Europe
- Climate topics
-
- Adaptation and resilience
- Extreme heat
- Urban nature
In 2027, Sofia will continue creating a network of climate shelters that provide protected, comfortable, and accessible spaces for residents.
The city will complete mapping of cool corridors and new shelter locations, adapt green spaces, and open at least one new shelter in a key public building or thoroughfare. Designed to protect vulnerable citizens, including the elderly and chronically ill, against extreme heat and winter cold, the initiative builds on peer learning with the Region of Valencia and cities in Japan.
2026 · C40 Cities · GCoM
Sydney
Sydney accelerates clean energy transition
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Clean energy
- Electrification
In 2026, the City of Sydney will continue to lead with strong climate targets and decisive action.
The city is helping both businesses and residents dramatically cut emissions, toward net zero by 2035, through programs like the Better Buildings Partnership, CitySwitch, Sustainable Destinations Partnership, and Smart Green Apartments.
In a major step toward equity, renters’ access to energy-efficient, climate-resilient homes will be supported via a dedicated role in the city’s sustainability programs unit. This bold vision is cemented by green energy policy: starting 1 January 2026, all new residential buildings will be required to be fully electric
Progress update
All new residential buildings in Sydney are now required to be fully electric. The city is also supporting existing residential and commercial buildings electrify through targeted grants and programs and helping communities and business prepare for emergencies and extreme weather. Since most people in the city rent, in 2026, Sydney also pushed for stronger protections for renters, submitting proposals to the NSW Government for Minimum Energy Efficiency Standards for Rental Homes. The changes would help apartment renters in particular, who are often hit hardest by rising energy costs.
What's happening in 2026
-
Electrification
Electrifying buildings
All new residential buildings in Sydney are now required to be fully electric.
-
Clean energy
Protections for renters
Minimum Energy Efficiency Standards for Rental Homes, helping renters who are often hit hardest by rising energy costs.
2027 · C40 Cities · GCoM
Sydney
Sydney is tackling heat and upgrading its buildings
- Country
- Australia
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Energy and buildings
- Extreme heat
- Fossil fuels
In 2027, Sydney will address urban heat, prioritising vulnerable communities.
Alongside this, the city will drive the shift to fully electric buildings, cutting emissions to create healthier, more energy-efficient homes and workspaces for residents and businesses.
2027 · GCoM
Tchaoudjo 1 Municipality
Tchaoudjo 1 is restoring forests
- Country
- Togo
- Region
- Africa
- Climate topics
-
- Adaptation and resilience
- Urban nature
How Tchaoudjo 1 Municipality is doing it
In 2027, Tchaoudjo 1 Municipality will create green spaces by restoring three sacred forests, two community forests, and reinforcing an urban forest. This marks the start of a five year commitment to safeguard biodiversity and strengthen the ecological resilience of rural and urban landscapes.
What's happening in 2027
-
Urban nature
Restore forests
Tchaoudjo 1 Municipality will create green spaces by restoring 5 forests and reinforcing an urban forest.
-
Adaptation and resilience
Strengthen ecological resilience
A 5-year commitment to safeguard biodiversity in rural and urban landscapes.
2027 · C40 Cities
Tel Aviv
Tel Aviv-Yafo is embedding climate into urban planning
- Country
- Israel
- Region
- Europe
- Climate topic
-
- Transport
In 2027, Tel Aviv-Yafo will integrate climate-oriented planning across major transport and public space projects.
The city will advance walking, cycling and public transport along light rail and future metro corridors, while designing public spaces as climate refuges, combining mature trees, shade, stormwater management and accessible, comfortable conditions for pedestrians.
2027 · GCoM
Teofipol
Teofipol is strengthening energy security
- Country
- Ukraine
- Region
- Europe
- Climate topics
-
- Just transition
- Urban nature
In 2027, the Teofipol Community will expand its miscanthus plantations to 24 hectares on degraded land, helping restore the soil while producing a local renewable fuel for heating.
Following the launch of its new pellet plant, the community will pilot the use of miscanthus as a fuel source in 2027, lowering heating costs and reducing dependence on fossil fuels while strengthening energy security.
2027 · C40 Cities · GCoM
Tokyo
Tokyo is accelerating clean energy and resilience
- Country
- Japan
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Clean energy
- Energy and buildings
- Extreme heat
In 2027, Tokyo will go even further in expanding renewable energy and strengthening resilience.
Thanks to successful programs popularising solar panels and batteries, the city is on track to achieve its 2030 targets two years ahead of schedule and raise its 2035 goals to 4 million kW of solar and 4.5 million kWh of storage. To counter extreme heat and global energy insecurity, Tokyo will also improve insulation and fit more solar panels and batteries at metropolitan facilities used as evacuation centres and temporary shelters, pairing decarbonisation with energy security on the path to Zero Emission Tokyo.
2026 · C40 Cities · GCoM
Tokyo
Tokyo steps up for climate action
- Country
- Japan
- Region
- East, Southeast Asia and Oceania
- Climate topics
-
- Adaptation and resilience
- Electrification
- Floods
How Tokyo is doing it
This April, Tokyo launched a mandate to install solar panels on new builds to accelerate the transition towards zero-emission building stock, as well as strengthening measures for existing buildings.
Looking ahead, Tokyo plans to develop a floating offshore windfarm capable of powering 900,000 homes, while mega-watt scale Air Solar systems will be installed on high-rises. To tackle flooding from climate-driven heavy rainfall, they are also constructing regulating reservoirs in riverside parks and beneath roadways. By FY 2035, the city aims to bring into operation a cumulative total (since FY 2019) of 2.5 million m3 of regulating reservoirs and related facilities.
Progress update
In 2026, the Tokyo Metropolitan Government (TMG) is promoting Air Solar through implementation trials, installation at metropolitan facilities, and new support for private businesses and municipalities. Plans include Japan’s largest Air Solar installation, approximately 50 kW, at the Harumi Passenger Ship Terminal.
To reduce flood damage, TMG is also building flood control reservoirs beneath roads and in parks and other public spaces. Last year, these reservoirs took in approximately 640,000 m³ of floodwater – the equivalent of 256 Olympic-size swimming pools. To prepare for climate change, TMG is pressing forward with new reservoir and underground river projects to build a flood-resilient Tokyo.
What's happening in 2026
-
Electrification
Air Solar
Plans include Japan’s largest Air Solar installation at the Harumi Passenger Ship Terminal
-
Adaptation and resilience
Flood resilience
To reduce flood damage, flood control reservoirs are being built beneath roads and in parks and other public spaces.
2026 · C40 Cities · GCoM
Tshwane
Tshwane revitalises urban areas
- Country
- South Africa
- Region
- Africa
- Climate topics
-
- Adaptation and resilience
- Urban nature
How Tshwane is doing it
In 2026, Tshwane will revitalise heat-exposed and socially vulnerable urban areas through large-scale tree planting, improved waste management and focused urban maintenance.
These actions will cool public spaces, reduce pollution and create safer, walkable and bike-friendly environments. Through the Mayor’s weekly Re A Spana campaign, meaning “we are working”, city teams will continue to lead clean-up and greening operations across all regions. By the end of 2026, Tshwane will have hosted more than 50 Re A Spana campaigns across the city, planted 100, 000 trees and developed 7 Community Gardens thus advancing our vision of a more inclusive and climate-resilient capital city.
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What's happening in 2026
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Adaptation and resilience
Re A Spana
Re A Spana city teams will continue to lead clean-up and greening operations across all regions
-
Urban nature
Community gardens
By the end of 2026, Tshwane will have planted 100, 000 trees and developed 7 Community Gardens
2027 · C40 Cities · GCoM
Warsaw
Warsaw is retrofitting its schools and setting a new green standard for building renovatio
- Country
- Poland
- Region
- Europe
- Climate topic
-
- Energy and buildings
In 2027, Warsaw will scale up major energy and climate upgrades across more than 20 schools.
This builds on €50 million already invested in 26 schools through the EU Recovery Fund. The city will also introduce a new green standard for building renovation, so energy savings go hand in hand with urban greening, rainwater retention and circular economy principles, whilst providing climate resilience and ecological education for students, school communities and investors alike.
What's happening in 2027
-
Adaptation and resilience
Building on €50 million invested in 26 schools through the EU Recovery Fund, the City will scale up upgrades on 20 more
-
Energy and buildings
Building renovation will have a new green standard to ensure energy savings are paired with urban greening, rainwater retention and circular economy
-
Community
Students, school communities and investors will receive climate resilience and ecological education
2027 · C40 Cities
Wuhan
Wuhan is redesigning its streets for the heat
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Extreme heat
- Urban nature
In 2027, Wuhan will keep developing its Urban Cooling Action Plan, part of a broader push through 2026-2030.
The city is expanding green spaces, building sun and rain canopies at busy intersections, and rolling out mist cooling systems across neighbourhoods alongside green roofs, rain gardens and permeable pavement.
2026 · C40 Cities
Wuhan
Wuhan sets new goals for a greener future
- Country
- China
- Region
- Central East Asia
- Climate topics
-
- Community
- Urban nature
- Waste management
How Wuhan is doing it
In 2026, Wuhan will continue to improve the urban environment by protecting and restoring Xibeihu Lake.
This project will see volunteers and residents work together to document biodiversity, remove invasive species, and keep the lake clean. This will improve the local ecosystem, act as a natural filter, and provide health and recreational benefits for the community. Beihu Community will strengthen pollution control by optimising public service facilities and improving the rain and sewage system around the lake. Meanwhile, a new garden initiative will transform unused spaces like rooftops into biodiversity hotspots, using sustainable practices like composting kitchen waste to thrive.
Progress update
In 2026, Wuhan restored water quality and shoreline at Northwest Lake, drawing over 50 bird species back to the area, including rare egrets and herons. The city renovated 2.3km of shoreline, creating a Cherry Blossom Avenue and five waterfront platforms.
Alongside this, the Beihu Community built 17 shared community gardens where residents adopted 91 “travelling plant pots”. Wuhan also established its first grassroots ecological team, running over 300+ voluneer green activities this year.
What's happening in 2026
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-
Urban nature
Water quality
Restored water quality and shoreline at Northwest Lake, creating a Cherry Blossom Avenue and five waterfront platforms
-
Community
Grassroots activities
Wuhan established its first grassroots ecological team, running over 300+ volunteer activities
-
Community
Traveling plant pots
Beihu Community built 17 shared community gardens where residents adopted 91 “travelling plant pots”
Cities can’t do it alone
Cities are living examples of what climate resilience looks like in practice, demonstrating to others what is possible, and they’re ready to do more.
But to go further and faster, they need national governments and partners to match their ambition with finance, supportive policies, and technical assistance to implement solutions faster.
Climate action works best when every level of government works together.
Organisations
related
Commitments by C40 cities to drive ambitious climate results and halve fossil fuel use by 2030.
Supporting cities to create ambitious climate strategies that deliver meaningful community benefits.
C40 mayors and global partners are leading urban climate adaptation and resilience efforts on the front lines.
