Climate Leadership at the Local Level: Global Impact

The Global Covenant of Mayors for Climate and Energy is an international alliance of cities and local governments with a shared long-term vision of promoting and supporting voluntary action to combat climate change and move to a low emission, resilient society. Across the world, cities have made voluntary commitments to take significant action on climate change that are in line with, and in many cases more ambitious than, their respective national government baselines. Since its June 2016 merger, The Global Covenant of Mayors has worked to consolidate these commitments into one cohesive alliance. As of October 2017, more than 7400 cities and towns across the world have made a commitment to the Global Covenant. This annual report presents the collective greenhouse gas impact of these cities.

Over 7400 cities representing more than 680 million people
have committed to the Global Covenant of Mayors

  • Detail
  • Growth
  • Population

Regional Impacts of Global Covenant of Mayors Cities

Global Covenant of Mayors cities in all regions could avoid significant emissions compared to business-as-usual scenarios

Regional Emissions


Reductions below business-as-usual Global Covenant target emissions
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Impacts of Global Covenant of Mayors Cities

Cities and towns could avoid emitting nearly 1.3 billion tons of emissions in 2030



Per Capita Emissions Expected to Decrease

Estimated emissions per capita (tons CO2e) of Global Covenant cities by region in the target scenario