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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: average joe who wrote (15657)	8/11/2007 1:07:28 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 36921

I know. I'm wondering if Starfleet Command has forgotten about me. I need to phone home. Message 23386580 Meanwhile, back on Earth, Arctic sea ice watch group @ 7:51 AM A few people have already remarked on some pretty surprising numbers in Arctic sea ice extent this year (the New York Times has also noticed). The minimum extent is usually in early to mid September, but this year, conditions by Aug 9 had already beaten all previous record minima. Given that there is at least a few more weeks of melting to go, it looks like the record set in 2005 will be unequivocally surpassed. It could be interesting to follow especially in light of model predictions discussed previously. There are a number of places to go to get Arctic sea ice information. Cryosphere Today has good anomaly plots. The Naval Sea ice center has a few different algorithms (different ways of processing the data) that give some sense of the observational uncertainty, and the National Snow and Ice Data Center give monthly updates. All of them show pretty much the same thing. Just to give a sense of how dramatic the changes have been over the last 28 years, the figures below show the minimum ice extent in September 1979, and the situation today (Aug 9, 2007). The reduction is around 1.2 million square km of ice, a little bit larger than the size of California and Texas combined. realclimate.org