How Soon is now?






The paper itself (both versions) is a collection of standard arguments for why everything is uncertain and nothing can be concluded, but did actually include a little analysis. Specifically, the claim was made that temperatures in Churchill, Manitoba (close to the center of the Western Hudson Bay population of bears) had not risen, and that instead, any multidecadal variations in temperatures affecting the bears were related to the Arctic Oscillation (AO), a mode of natural variability. Of course, temperatures in the Churchill region have risen, and the ice extent in Hudson Bay is melting earlier and forming later (by about a month in each case) than 30 years ago. But the interesting aspect is the impact of the AO which certainly affects short term temperatures in the Arctic.

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