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Global Surface Mean Temp Anomalies

NOAA July 1, 2004

This graph shows that the air over land and water has increased in temperature since the late 1800s. This graph does not appear to correct for any variations in data gathering over that time nor does it identify what technique was used to collect the data.

As is evident in the graph, 2001 was second only to 1998 in terms of global temperature, and the trend has been toward increasing temperatures at least since the beginning of the 20th century. Land temperatures have greater anomalies than the ocean, which is to be expected since land heats up and cools down faster than water.

Click here for NOAA graph

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