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Medieval climate not so hot

Medieval climate not so hot
trefwoorden: klimaat - middeleeuwen
The idea that there's no need to worry about human-induced global warming because the world's climate in medieval time was at least as warm as today's is flawed, according to a recent analysis.
There's not enough evidence to conclude that the Medieval Warm Period was global, or that regional warm spells between 500 and 1500 A.D. occurred simultaneously, leading paleoclimatologists report in the Oct. 17 issue of Science.
"The balance of evidence does not point to a High Medieval period (1100 to 1200 A.D.) that was as warm or warmer than the late 20th century," the team wrote. They pointed out that temperatures during High Medieval time in the Northern Hemisphere were almost the same as they were from 1901 to 1970, a time period which was cooler than the last three decades of the 20th century by about one-third of a degree Celsius (six-tenths of a degree Fahrenheit).

Lees verder bij: Science Daily (20 oktober 2003)