Comment 97426

By JeffRintjema (registered) | Posted February 06, 2014 at 18:09:59 in reply to Comment 97419

Global warming is increasing the probability of cold winters. The circumpolar vortex is caused by the temperature difference between the arctic and the mid-latitudes, such as where we live. Since the arctic has experienced a greater warming than the mid-latitudes, there is less of a temperature difference between the two areas. And thus the polar vortex is slowed down and it becomes wavier. So relatively cold polar air can move down into our area and relatively warm mid-latitude air can move further north, like into Alaska. We can expect more cold winters than in the past. Remember, although it is bitterly cold for us, this air isn't that cold for the far north.

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