global warming

NASA's Six Decades of a Warming Earth

NASA scientists say 2013 tied for the seventh warmest of any year since 1880, continuing a long-term trend of rising global temperatures. With the exception of 1998, the 10 warmest years in the 133-year record all have occurred since 2000, with 2010 and 2005 ranking as the hottest years on record.

This visualization shows how global temperatures have risen from 1950 through the end of 2013.