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02/11/2006:

"World is at its warmest for a millennium"

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A review of a range of temperature records, from tree rings and ice cores to historical documents, has found that at no time since the 9th century have temperatures been so consistently high.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.
independent.co.uk