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Dramatic ice sheet collapse triggered global climate change

Dramatic ice sheet collapse triggered global climate change
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Scientists from the University of Southampton have found that the climatic events that ended the earlier ice age are surprisingly different to those...

London: Scientists from the University of Southampton have found that the climatic events that ended the earlier ice age are surprisingly different to those of the last ice age. At the end of an ice age continental ice sheets, oceans and atmosphere change rapidly.


These results will help scientists understand the processes that control Earth's dramatic climate changes at the end of an ice age."To our surprise, the sequence of climate events 135,000 years ago looks very different from what happened at the end of the last ice age, about 20,000 to 10,000 years ago," said lead author Gianluca Marino of Australian National University (ANU). Scientists have previously only been able to reconstruct in detail the changes at the end of the last ice age.


"At the end of the last ice age, rapid melting of the Northern Hemisphere ice sheets and major climate changes did not occur at the same time. At the end of the ice age, 135,000 years ago, a rapid collapse of the Northern Hemisphere ice sheets into the North Atlantic Ocean suppressed ocean circulation and caused global climate impacts," said co-author professor Eelco Rohling from the University of Southampton.

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