Climate Policy in Five Key Economies Across Three Decades

This interactive site is an overview of policy issues relevant to climate change across the world. Along with the full accompanying study, it presents three decades of evidence on emissions trends, emissions drivers, and policy activity from five key economies – Brazil, China, India, the EU, and the U.S. —which together contain slightly more than half of the world’s population and account for nearly two-thirds of global greenhouse gas emissions.