Past regional cold and warm periods linked to natural climate drivers

"Studying the past can potentially inform our understanding of what the future may hold," said Michael Mann, professor of meteorology, Penn State.


Penn State Live
Friday, November 27, 2009

University Park, Pa. -- Intervals of regional warmth and cold in the past are linked to the El Niño phenomenon and the so-called "North Atlantic Oscillation" in the Northern hemisphere's jet stream, according to a team of climate scientists. These linkages may be important in assessing the regional effects of future climate change.

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