The IPCC's four key findings

The above graphic lists four highlights from the Intergovernmental Panel on Climate Change's (IPCC) Fifth Assessment Report Summary for Policy Makers, released September 27, 2013, which more than 25 NASA scientists helped author and review.

The report is the work of 209 lead authors and 50 review editors from 39 countries, and over 600 contributing authors from 32 countries.