The global movement towards cities presents a tremendous opportunity. Cities represent over 80% of global GDP, serving as the centers of economic growth and innovation. Cities have also demonstrated the ability to act more rapidly than national governments, such as showing the power to rapidly rebuild following disasters or craft policies that address evolving social issues.
City mayors and regional leaders have used this capacity for adaptation to call for swift climate action. As of 2016, 533 cities from 89 countries have disclosed GHG emissions, representing a 70% increase since the Paris agreement.3 Of those cities in North America, over half have developed formal action plans with emission reduction goals. These goals are now being translated to specific targets for buildings, transportation, and industry with new policies emerging in each sector.