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

To: Skywatcher who wrote (12903)	5/24/2007 3:18:09 PM
From: longnshort	Respond to of 36921

Chris you would have to increase your IQ 100 points to get to Dim

To: Skywatcher who wrote (12903)	5/25/2007 2:29:59 PM
From: Wharf Rat	Read Replies (3) \| Respond to of 36921

The big thaw From Greenland to Antarctica, the world is losing its ice faster than anyone thought possible. Can humans slow the melting? From the high mountains to the vast polar ice sheets, the world is losing its ice faster than anyone thought possible. Even scientists who had monitored Chacaltaya since 1991 thought it would hold out for a few more years. It's no surprise that glaciers are melting as emissions from cars and industry warm the climate. But lately, the ice loss has outstripped the upward creep of global temperatures. Scientists are finding that glaciers and ice sheets are surprisingly touchy. Instead of melting steadily, like an ice cube on a summer day, they are prone to feedbacks, when melting begets more melting and the ice shrinks precipitously. At Chacaltaya, for instance, the shrinking glacier exposed dark rocks, which sped up its demise by soaking up heat from the sun. Other feedbacks are shriveling bigger mountain glaciers ahead of schedule and sending polar ice sheets slipping into the ocean. www7.nationalgeographic.com