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post #3 of Old 11-25-2007
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The information used to compile these averages was obtained from oceanographic and meteorologic observations over many decades during the late 18th and 19th centuries.

If I read that right, the data is over 100 years old? I'm sure it is still pretty darn good information and I realize these are averages, but the climate has changed somewhat in the last 100+ years. Is there any updating going on?
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