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Bringing together 96 cities representing more than 700 million people and one quarter of the global economy, C40 was founded by mayors, for mayors, to take ambitious climate action. C40 is now leading the charge for a Global Green New Deal — a series of essential steps to cut emissions, invest in clean energy, protect our natural resources, and ensure a just transition for all, and particularly the most disadvantaged.

The COVID-19 crisis has again laid bare the current inability of nation states to work with each other to solve global problems in the face of President Trump’s continuing assaults on international institutions. In stark contrast, the world’s mayors leading cities worst affected by the COVID-19 crisis have been strengthening collaboration based on good science, robust data and common human interest, building off a decade of co-operation to tackle climate change.

C40’s Participation Standards are guidelines for C40 membership and include a number of mandatory requirements such as setting an ambitious target for reducing GHG emissions, a climate action plan with concrete initiatives to meet the target as well as to increase urban climate resilience, and actively sharing best practice examples with other cities through C40’s Networks. It is now time to take a step back and acknowledge the great level of commitment, engagement and participation of our member cities in 2019!

In November 2019, Rotterdam delivered its own Climate Agreement, in line with Paris Agreement goals and in partnership with more than 100 companies and social organizations. Within 10 years, the city aims to reduce CO2 and other greenhouse gas emissions by 50 percent.

The City-Business Climate Alliance (CBCA) has officially launched - and we’re calling on cities to join. The CBCA is a joint initiative of C40 Cities, CDP and the World Business Council for Sustainable Development (WBCSD) designed to accelerate climate action through city-business collaboration.