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And whilst on the subject...

Posted by Julian on Thu Aug 08, 2002 08:07:12 AM

In reply top Re: Strange jet trails over Norway posted by Julian on Thu Aug 08, 2002 07:47:09 AM

Just been reading a piece in the Daily Telegraph saying that contrails affect our climate on cloudless days with cooler days and warmer nights- they reflect sun's warmth during the day and trap heat at night. Apparently 3 days of no traffic over the US after 9/11 allowed scientists in Wisconsin to make a comparison.

Hmmm...

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