Global Protocol for Community-based Greenhouse Gas Emissions (GPC)
The GPC provides a robust framework for accounting and reporting city-wide greenhouse gas emissions. It seeks to:
Help cities develop a comprehensive and robust greenhouse gas inventory in order to support climate action planning
Help cities establish a base year emissions inventory, set reduction targets, and track their performance
Ensure consistent and transparent measurement and reporting of greenhouse gas emissions between cities, following internationally recognized greenhouse gas accounting and reporting principles
Enable city inventories to be aggregated at subnational and national levels
Demonstrate the important role that cities play in tackling climate change, and facilitate insight through benchmarking â€“ and aggregation â€“ of comparable data
The GPC is the newest and full publication that has taken into consideration feedback from the pilot test in 2013 and global public comments in 2012 and 2014 (get more information about the GPC development process). It replaces all the previous draft versions of the GPC and supersedes the International Local Government Greenhouse Gas Emissions Analysis Protocol (community section) published by ICLEI in 2009 and the International Standard for Determining Greenhouse Gas Emissions for Cities that published by the World Bank, United Nations Environment Programme (UNEP), and UN-HABITAT in 2010.
A globally-recognized standard
To date, more than 100 cities across the globe have used the GPC (current and previous versions) to measure their greenhouse gas emissions.