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Global Temperatures


http://www.noaanews.noaa.gov/stories2007/20071213_climateupdate.html


"The global annual temperature − for combined land and ocean surfaces �
for 2007 is expected to be near 58.0 F � and would be the fifth warmest
since records began in 1880. Some of the largest and most widespread
warm anomalies occurred from eastern Europe to central Asia.

Including 2007, seven of the eight warmest years on record have
occurred since 2001 and the 10 warmest years have all occurred since
1997. The global average surface temperature has risen between 0.6�
C and 0.7�C since the start of the twentieth century, and the rate of
increase since 1976 has been approximately three times faster than the
century-scale trend.

The greatest warming has taken place in high latitude regions of the
Northern Hemisphere. Anomalous warmth in 2007 contributed to the
lowest Arctic sea ice extent since satellite records began in 1979,
surpassing the previous record low set in 2005 by a remarkable 23 percent.
According to the National Snow and Ice Data Center, this is part
of a continuing trend in end-of-summer Arctic sea ice extent reductions of
about 10 percent per decade since 1979."