Facts are dangerous items, part 127.
(see part 126, for example)
Sweltering summer nights are a US trend :
WASHINGTON -- America in recent years has been sweltering through three times more than its normal share of extra-hot summer nights, government weather records indicate. And some scientists say the trend is a sign of manmade global warming. From 2001 to 2005, nearly 30 percent of the nation had ``much above normal“ average summertime minimum temperatures, according to the National Climatic Data Center in Asheville, N.C. By definition, ``much above normal” means low temperatures that are in the highest 10 percent on record. Yet in both 2005 and 2003, 36 percent of the nation had much above normal summer minimums.
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