21 January 2009

Wrong again, as usual

My technical advisor, John Robinson, takes issue with my post about global warming and, in a see-you-and-raise-you move, sends me this link, to an ocean engineering site that says, no, there's more ice, not less:
Thanks to a rapid rebound in recent months, global sea ice levels now equal those seen 29 years ago, when the year 1979 also drew to a close. Ice levels had been tracking lower throughout much of 2008, but rapidly recovered in the last quarter. In fact, the rate of increase from September onward is the fastest rate of change on record, either upwards or downwards. The data is being reported by the University of Illinois's Arctic Climate Research Center, and is derived from satellite observations of the Northern and Southern hemisphere polar regions. Each year, millions of square kilometers of sea ice melt and refreeze. However, the mean ice anomaly, defined as the seasonally-adjusted difference between the current value and the average from 1979-2000, varies much more slowly. That anomaly now stands at just under zero, a value identical to one recorded at the end of 1979, the year satellite record-keeping began.
Rico says he doesn't know what to believe, but we'll either have more ice or less, and soon... (He, and the polar bears, hope for more.)

1 comment:

Peripatetic Engineer said...

Take the test!

http://www.geocraft.com/WVFossils/GlobWarmTest/start.html

 

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