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| Multiyear Arctic ice vanishing http://www.veteransforjustice.com/phpBB3/viewtopic.php?f=71&t=55 |
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| Author: | Gordon Sturrock [ Thu Nov 05, 2009 9:19 pm ] |
| Post subject: | Multiyear Arctic ice vanishing |
Multiyear Arctic ice vanishing Sat, 31 Oct 2009 19:07:56 GMT Experts say the multiyear ice covering the Arctic Ocean is melting at an extraordinarily fast rate, opening polar shipping routes. Canada's Research Chair in Arctic System Science of Manitoba University, David Barbe said on Thursday that the ice sheet was vanishing altogether. "We are almost out of multiyear sea ice in the northern hemisphere," he said in a Parliament presentation. The little part that remains is jammed up against Canada's Arctic Archipelago, which is far from potential shipping routes, Reuters reported. Barber who had gone on an expedition in search of a huge multiyear ice pack in the Beaufort Sea off the Canadian coastal town of Tuktoyaktuk, found instead hundreds of miles of thin layers of fresh ice or as he called "rotten ice". "I've never seen anything like this in my 30 years of working in the high Arctic ... it was very dramatic," he said. "From a practical perspective, if you want to ship across the pole, you're concerned about multiyear sea ice," he added. "You're not concerned about this rotten stuff we were doing 13 knots through. It's easy to navigate through." Many experts believe the North Pole will experience an ice-free summer by 2030. "I would argue that, from a practical perspective, we almost have a seasonally ice-free Arctic now, because multiyear sea ice is the barrier to the use and development of the Arctic," said Barber. The albedo feedback effect has caused the Arctic to warm up three times more quickly than the rest of the Earth. "The Arctic is an early indicator of what we can expect at the global scale as we move through the next few decades ... So we should be paying attention to this very carefully," Barber said. source: http://www.presstv.com/detail.aspx?id=1 ... id=3510208 |
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