NYT: Global Warming Trend Continues in 2006, Climate Agencies Say

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Global Warming Trend Continues in 2006, Climate Agencies Say
By ANDREW C. REVKIN
Published: December 15, 2006

A decades-long global warming trend that most climate experts say is linked to rising levels of heat-trapping smokestack and tailpipe gases continued apace this year, according to summaries issued yesterday by several national and international climate agencies.

Figures differed slightly, with British weather officials and the World Meteorological Organization, based in Geneva, estimating that 2006 would end up the sixth warmest year since modern records began and NASA scientists putting it fifth.

But all of the reports noted that temperatures greatly above normal were recorded in places as varied as Australia and Scandinavia’s Arctic islands, shattering a variety of longstanding records.

The global climate has warmed and cooled naturally throughout Earth’s history, including a protracted warm spell a millennium ago and a “little ice age” from the 1400s through the 1700s.

But the last 50 years of warming, many climate scientists say, is pressing beyond natural peaks of the last 11,000 years. They say the changes cannot be explained without including a substantial, and growing, push from billions of tons of annual emissions of carbon dioxide and other gases known to trap heat in the air....

http://www.nytimes.com/2006/12/15/science/15climate.html