NOAA: North American 2008 Cooling Attributed to Natural Causes
Green Car Congress
DECEMBER 4, 2009
Right side: 2008 annual surface air temperature, shown as a departure from the 1971-2000 climatology. Using computer-generated models as well as observations, the team analyzed causes for climate variations in the recent decades. Special emphasis was given to the reasons for North American coolness in 2008. Credit: NOAA.
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