Observed Change in Global Average Temperature

Observed Change in Global Average Temperature

Three different global surface temperature records all show increasing trends over the last century. The lines show annual differences in temperature relative to the 1901-1960 average. Differences among data sets, due to choices in data selection, analysis, and averaging techniques, do not affect the conclusion that global surface temperatures are increasing. (Figure source: NOAA NCDC / CICS-NC).

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Free to use with credit to the original figure source.
Topics
Physical Climate, Observations