Ice-sheet variability around the North Atlantic Ocean during the last deglaciation

Article Abstract:

New research supports the view that the release of icebergs and meltwater during Heinrich event 1 caused changes in the North Atlantic thermohaline circulation. These changes prompted a delay or reversal of deglaciation of the Northern Hemisphere and at least as far south as 40 deg S for between two and three thousand years. Most significantly, discharge of icebergs to the North Atlantic from the Laurentide Ice Sheet would have rapidly reduced formation of North Atlantic Deep Water, bringing about cooling in the North Atlantic region.

Natural history, Drift, Drift (Geology), North Atlantic region

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Chilled out in the ice-age Atlantic

Article Abstract:

A new reconstruction of temperatures in the Atlantic Ocean during the last ice age is used to provide climate modellers with details of the past to help predict the future.

United States, Science & research, Atlantic Ocean, Environmental aspects, Glacial epoch, Ice age, Paleoclimatology

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Ice sheets by volume

Article Abstract:

Observations from Northern Australian sediment cores are used to determine ice volume during the Last Glacial Maximum, some 21,000 years ago.

Earth sciences, Ice sheets, Glacial climates

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