2012: Hottest year yet in the U.S.
New data show 2012 was the hottest year on record in America and featured an unusual number of extreme weather events. Post environmental reporter Juliet Eilperin helps explain the significance of today's report.
New data show 2012 was the hottest year on record in America and featured an unusual number of extreme weather events. Post environmental reporter Juliet Eilperin helps explain the significance of today's report.
