Sunday, February 12, 2006

globeandmail.com : World at its warmest of past 1,200 years, researchers show

Tree rings and seashells help reveal unusual climate of last half century

MARTIN MITTELSTAEDT

ENVIRONMENT REPORTER

The last part of the 20th century is considered by many scientists to be the warmest period since modern record-keeping began around the 1850s, but new research indicates the era is even more remarkable.

The warmth in which the Northern Hemisphere has basked since the middle of the 20th century has been the most widespread and longest period of unusual climate experienced at any time during at least the past 1,200 years, according to a research paper in the journal Science.

The finding, by a pair of climate researchers from the University of East Anglia in Norwich, U.K., was based on comparisons of the current warm period to other hot and cold intervals since the year 800.

// posted by Unknown @ 12:25 a.m.
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