"The World Meteorological Organization reported on Monday that 2014 was the hottest year in a historical record of global temperature dating from 1880. That finding confirms an announcement made last month by two American scientific agencies and one in Japan.

The Geneva-based agency noted, however, that 2014 was warmer than some other recent years by only a few hundredths of a degree, within the error margin of global temperature measurements. That effectively means that 2014, 2010 and 2005 are in a statistical tie."

Justin Gillis reports for the New York Times February 2, 2015. [2]