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March 22, 2008


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I think the real issue I have with this article is that you give the impression that sea-ice is the indicative feature with regards to warming or cooling in the antarctic whereas I would argue ice sheet losses, glacier losses and ice shelf losses are much more important variables for indicating warming. I would argue this because sea-ice in antarctica rarely reaches multi-year stage and is very receptive to yearly variabilities in weather patterns and temperature. Whereas Ice shelves, glaciers and ice sheets are receptive to long term trends such as warming. Therefore the variability assoiciated with sea-ice growth can indeed be representative of yearly patterns but overall when it comes down to a rate of 1.3% growth in sea-ice per decade in antarctica, that is not as important an indicator as ice shelves been lost which have been there for thousands upon thousands of years.

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  • We'll have a lot of decisions to make in the face of Arctic climate change. This blog is about the range of available choices, and about the tradeoffs involved in making them. Ben Muse, an Alaskan economist, is the blogger. Muse works for a resource management agency. However, any opinions expressed here are his and not necessarily the positions of any former or current employer. In the interests of full disclosure, Muse's current employer has fisheries, marine habitat, endangered species, and marine mammal management responsibilities in the Arctic.

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