WRI, C40, and ICLEI created the Global Protocol for Community-Scale Greenhouse Gas Emission Inventories (GPC). Over the last two years, more than 100 cities have used the GPC to measure and reduce their emissions. Specifically, WRI worked with partners to provide technical support to 15 Latin American cities and 12 Chinese cities.

The Challenge

Cities already contribute about 70 percent of the world’s carbon dioxide emissions. With 70 percent of the global population projected to live in cities by 2050, the situation is poised to worsen. To manage these emissions, we need to measure them, know where they come from, and know what drives them—and that requires a robust tool to accurately measure and track them over time.

WRI’s Role

WRI, C40, and ICLEI created a Greenhouse Gas Protocol standard to help cities measure and report emissions, known as the Global Protocol for Community-Scale Greenhouse Gas Emission Inventories (GPC). The GPC pilot version was released in 2012, with the final version set for publication in December 2014.

Over the last two years, more than 100 cities across the globe have used the GPC to measure emissions and take actions. Specifically, WRI worked with partners to provide technical support to 15 Latin American cities and 12 Chinese cities.

In Latin America, WRI worked with the Inter-American Development Bank, the Andean Cities Footprint Project and other partners to provide technical advice and train local practitioners on how to use the GPC. In China, WRI experts provided technical support to the Chinese Academy of Social Sciences, the China Beijing Environment Exchange, the Guangzhou Institute of Energy Conversion and more. Collectively, WRI trained more than 200 city officials and practitioners in these regions.

The Impact

These 27 cities currently emit about 460 million tons of carbon dioxide each year, about 1 percent of the global total. They now have the tool they need to start reducing these emissions, a move that will help curb climate change globally.

The Latin American cities have identified more than 200 actions they can take to lower their emissions, while the Chinese cities are using the GPC to track progress toward their emissions-reduction goals. WRI continues to support them to translate their goals and plans into action, which collectively can avoid 77 million tons of carbon dioxide per year by 2050, about the equivalent of Portugal’s current annual emissions.