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Research Library

  • Understanding Infrastructure Interdependencies in Cities
    The damaging impacts of the climate crisis pose a major threat to cities. It is critical that we understand best practices and the barriers cities face when it comes to making infrastructure and th...
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  • Realising the Multiple Benefits of Climate Resilience and Inclusive Development in Informal Settlements
    This study by C40, Cities Alliance, IIED, SDI, UNHabitat and ICLEI explores how upgrading informal settlements can lead to multiple climate resilience, inclusive, and low carbon development benefit...
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  • Defining Carbon Neutrality for Cities & Managing Residual Emissions
    If cities are to drive the rapid and systemic change The Paris Agreement prescribes, then it is crucial there is a clear guidance for cities on what citywide carbon neutrality looks like and how to...
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  • Municipality-led circular economy case studies
    Circular flows of materials in cities promises job creation, operational savings, less waste and lower carbon emissions, but how does it work in practice? How can a city municipality catalyse a tra...
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    Summary for Urban Policymakers: What the IPCC Special Report on Global Warming of 1.5°C Means for Cities
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  • Toward a Healthier World
    C40 and Johnson & Johnson are working in partnership to connect the dots between climate action, improved air quality and better health amongst citizens. C40 has undertaken cutting-edge researc...
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  • Constructing a New Low Carbon Future: How Chinese cities are scaling ambitious building energy efficiency solutions.
    The C40 China Buildings Programme (C40 CBP) has launched a new report, Constructing a New Low Carbon Future: How Chinese cities are scaling ambitious building energy efficiency solutions. Authored ...
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  • Climate Opportunity: More Jobs; Better Health
    As cities around the world accelerate efforts to meet their commitments to the Paris Agreement, new research from C40 Cities, The Global Covenant of Mayors for Climate & Energy and the New Clim...
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  • Electric Buses in Cities: Driving Towards Cleaner Air and Lower CO2
    Cities around the world are introducing electric buses, driven by growing concerns over urban air quality, carbon emissions and potential operational cost savings. The timing is now right for citie...
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  • Opportunity 2030: The benefits of Climate Action in Cities
    The findings from this report present an evidence base for accelerated action for climate change mitigation measures. It equips city, national governments, private sector and citizens with several ...
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