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PostPosted: Tue Jan 05, 2010 23:32 
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Steve wrote:
Steve wrote:
dcbwhaley wrote:
The behaviour of the Arctic ice cap and the opening of the north west passage suggests that it is getting warmer up there.

It's been open for quite a while already.
Using this as an proof of AGW is highly specious (not specifically aimed at you DCB, but too many people unthinkingly refer to this).
Wouldn't you expect sea levels to rise if we're exiting an earlier ice age? Did you know the sea levels were 140m lower 10,000 years ago?


Someone's just been stung with that claim!


That appears to be about the North East passage not the North West. Nor did I say that the opening of the NW passage was down to AGW just to GW.

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PostPosted: Wed Jan 06, 2010 00:08 
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dcbwhaley wrote:
That appears to be about the North East passage not the North West. Nor did I say that the opening of the NW passage was down to AGW just to GW.

:oops: My bad.

However, no-one has disputed that it has been getting warmer, until a decade ago anyway. So what is so special about this year?
Marine technology is also improving and circulation patterns could also be changing, so even GW may not be the reason, let alone AGW.
Also, it was already navigated over a century ago, so was it warmer back then too?

My original point stands: Using this as an proof of AGW is highly specious (not specifically aimed at you DCB...)

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