Decadal surface temperature anomalies

(a) 1950-1959 surface temperature anomalies

(b) 1967-1976 surface temperature anomalies

(c) 1980-1989 surface temperature anomalies

Decadal surface temperature anomalies, relative to 1951-1980. Land air temperatures from P.D. Jones and sea surface temperatures from the United Kingdom Meteorological Office. White areas show where there are in sufficient data. IPCC, 1992.