Anna Ruth (Ruthie) Halberstadt

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The ice that now covers West Antarctica was not there 3.6 million years ago, after a massive collapse of the ice sheet during a warming period. Anna Ruth Halberstadt

West Antarctica’s history of rapid melting foretells sudden shifts in continent’s ‘catastrophic’ geology

Christine Siddoway, Colorado College; Anna Ruth (Ruthie) Halberstadt, The University of Texas at Austin, and Keiji Horikawa, University of Toyama

A picture of what West Antarctica looked like when its ice sheet melted in the past can offer insight into the continent’s future as the climate warms.

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