BuSab Message Board - Msg: 25443152

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Politics : BuSab

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To: Oral Roberts who wrote (103)	2/25/2009 12:12:57 PM
From: Jorj X Mckie	Read Replies (1) of 23934

So let's talk about Antarctica's ice sheets news.yahoo.com Antarctica's average annual temperature has increased by about 1 degree Fahrenheit (0.56 degrees Celsius) since 1957, but is still 50 degrees Fahrenheit (45.6 degrees Celsius) below zero, according to a recent study by Eric Steig of the University of Washington. Ok, so here's my question for the day. Does ice melt faster at -50F than it does at -51F? By my calculations, they still have another 80 degrees or so to go before they get any real melting at all from the atmospheric temperature. Does this mean that the melting of the antarctic ice sheets might actually be caused by something other than "global warming". Maybe a change in Antarctic Circumpolar Current has something to do with it. Anybody who lives in california knows that the cyclical nature of ocean currents plays a huge role in weather patterns. El Nino and La Nina are all about cyclical ocean currents. Hell, 40million years ago, antarctica had trees on it because the Antarctic Circumpolar Current didn't exist because there wasn't enough separation between Antarctica and South America. If the ice sheets in antarctica are reducing in size, the mechanism is certainly not the atmospheric temperature. Water is in just as much a solid state at -50F as it is at -51F.

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