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CTDL 150: Melting the poles

This BBC article starts off with a study that shows problems with the cosmic rays as a cause for “global warming” hypothesis. But, it ends with this little bit:

In periods of relatively intense particle activity, some areas of the Earth’s surface in both the Arctic and Antarctic are warmer while others become colder, showing differences of up to 2C or 3C compared to the long-term averages.
In periods of unusually low particle activity, the patterns are reversed.
The mechanism appears to be redistributing heat across the polar regions; there is no evidence for any overall warming or cooling, Dr Seppala added, nor that the scale of the effect has changed over time.

[From BBC NEWS | Science/Nature | More doubt on cosmic climate link]

Which would indicate that while it doesn’t account for global temperature variation, it may account for a portion of the rapidity of polar melting. If that’s the case, and we’re using that melt-rate as a barometer of how screwed up we are, we’re not using a good thermometer (similar to how sticking a thermometer under your arm as a kid isn’t as accurate, but is more pleasant, than sticking it in a bodily orifice).


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