Thread: Global Warming
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Old 02-12-13, 07:54 AM   #10
Xringer
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Quote:
Originally Posted by stevehull View Post


The "infamous" Northwest Passge, searched for since Henry Hudson's time, is now open in the Arctic with the lowest thickness of sea ice ever see. How do we know? The first nuclear submarine, the Nautilus, made a trip under the north pole in 1959 and accurately measured sea ice thickness. My uncle was on that historic sub trip and there were times when the ice was so thick that they almost didn't make it between ice bottom and ocean bottom. They measured this to hide from Soviet subs that were non-nuclear. The US Navy has a LOT of data on ice thickness (now ice thinness or open water).

Now, on that same exact route, 80% of the 1959 sub trip is open water . . .

Steve
Ice at the North Pole in 1958 and 1959 – not so thick | Watts Up With That?

It kinda looks like the ice up there, comes and goes..
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