GLOBAL SURFACE
CLIMATE REANALYZER-GFS (BASE: 1979-2000) : +1.19° (over the last 33 years)
NCAR/NCEP T62 reanalysis (BASE: 1981-2010): +0.97° (over the last 28 years)
NASA-GISS (BASE: 1951-1980) : +1.47° (over the last 58 years)
CENTURY NORMAL (BASE: 1901-2000) : +1.42° (over the last 73 years)
NASA since 1880 : +1.1° (over the last 143 years)
