Global Commons Stewardship Index

Sustainable management of the Global Commons– the climate system, ozone layer, land biosphere, oceans, and ice sheets & glaciers – requires data and metrics to guide better poli­cies. To this end, the 2021 Global Commons Stewardship (GCS) Index(link is external) assesses both countries’ domestic impacts on the Global Commons and the impacts embodied in trade and consumption (so-called “international spillovers”).