Global Convention of Mayors on Climate and Energy

The largest global alliance for cities' climate leadership. This is a strong and historic response of cities to climate change around the world. GCoM is the largest global alliance for city climate leadership, based on the commitment of more than 11,500 cities and local governments. These cities come from 6 continents and 142 countries. In total, they represent more than 1 billion people. Based on current targets and measures, GCoM cities and local governments could collectively reduce global emissions by 1.9 GtCO2e per year in 2030 compared to a no-change trajectory. In 2050, this figure is estimated at 3.8 GtCO2e per year, representing a quarter of the total emission reduction potential of cities. This is equivalent to more than half of all greenhouse gas emissions in the United States in 2019, or four years of CO2 emissions from global commercial aviation. Cities and local governments around the world are increasingly heeding the call to action. As nations strive to achieve the goals of the Paris Climate Agreement, the involvement of cities could not be more urgent. The cities and partners of the Global Covenant of Mayors for Climate and Energy share a long-term vision of supporting voluntary measures in the fight against climate change. We are working together to create a resilient, low-emission society.

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