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Sea Level Rise


Antarctic Bottom Waters Freshening at Unexpected Rate

Antarctic Bottom Waters Freshening at Unexpected Rate

In the cold depths along the sea floor, Antarctic Bottom Waters are part of a critical part of the global circulatory system. Over the last decade, scientists have been monitoring changes in these waters, but a new WHOI study suggests these changes are themselves shifting in unexpected ways, with potentially significant consequences for the ocean and climate.

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New Study Projects That Melting of Antarctic Ice Shelves Will Intensify

New Study Projects That Melting of Antarctic Ice Shelves Will Intensify

New research published today projects a doubling of surface melting of Antarctic ice shelves by 2050 and by 2100 may surpass intensities associated with ice shelf collapse, if greenhouse gas emissions from fossil fuel consumption continues at the present rate.

Ice shelves are the floating extensions of the continent’s massive land-based ice sheets. While the melting or breakup of floating ice shelves does not directly raise sea level, ice shelves do have a “door stop” effect: They slow the flow of ice from glaciers and ice sheets into the ocean, where it melts and raises sea levels.

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