NASA Makes it Official: 2000-2009 Was Hottest Decade on Record

Submitted by Charles Frost on Fri, 01/22/2010 - 11:15.

10 year temperature average chart
The map shows temperature changes for the last decade--January 2000 to December 2009--relative to the 1951-1980 mean. Warmer areas are in red, cooler areas in blue. The largest temperature increases occurred in the Arctic and a portion of Antarctica. Image: NASA

NASA has just announced that the period from January 2000 through December 2009 has been the hottest decade since record-keeping began in 1880. Furthermore, 2009 was the second-hottest year on record for the planet as a whole and in the southern hemisphere, the hottest. Last year was only a fraction of a degree cooler than the hottest year, 2005.

Focus on Long-Term Trend, Not Just Yearly Records
But don't fixate on yearly data--which year is hottest, or second hottest--says Goddard Institute for Space Studies director Dr. James Hansen. Doing so "usually misses the point." In short, it's the long-term trend not the year-to-year variability that we should be focusing on.

Hansen points out that while there's always interest in that record, "There's substantial year-to-year variability of global temperature caused by the tropical El Niño-La Niña cycle. But when we average temperature over five or ten years to minimize that variability, we find that global warming is continuing unabated."

The NASA data shows that surface temperatures over the past 30 years have increase about 0.2°C each decade.

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Ozone layer

Great!!!  I'm currently freezin' and now the ozone holes are shrinking.  Scientists are claiming that a smaller ozone hole will increase global warming from the increased cloud cover over the poles.   

I need to research this some more, picked it up on NPR driving home from work.





A Clear 5 Minute Video on Arctic Ice Melt/Global

This might help you with your research...

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By refusing to deal honorably with others, you dishonor yourself.