From: Marktcards (84.92.179.110)
Subject: Northern Hemisphere warmest for at least 1200 years
Date: February 10, 2006 at 7:38 am PST

The entire northern hemisphere is experiencing a sustained
period of warming that is unprecedented in the past millennium,
a study has found.

A review of a range of temperature records, from tree rings and
ice cores to historical documents, has found that at no time
since the 9th century have temperatures been so consistently
high. The study, published in the journal Science, found that
the late 20th century was the warmest period for the northern
hemisphere since at least 800AD, eclipsing the well-known
medieval warm period when vines were cultivated successfully in
northern Europe and the Vikings exploited the ice-free seas to
colonise Greenland.

"Our results show that, during the late 20th century, warming
affected the entire northern hemisphere and that at no point in
the past 1,000 years has the northern hemisphere experienced
the same widespread warming," Dr Osborn said.

• full article

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