http://thinkprogress.org/climate/2015/01/16/3612351/noaa-nasa-2014-hottest-year-on-record/
"In fact, as the top figure shows, the decade of the 2010s is on track to be the hottest decade on record. The 1980s were the hottest decade on record at the time. Then they were beat by 1990s, which in turn were beat by the 2000s for the title of hottest decade."