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NSF campaign will drill for ice capturing West Antarctica’s last collapse
Paul VoosenScientists have long suspected that 125,000 years ago, the West Antarctic Ice Sheet collapsed, drowning a world not much warmer than today in 3 meters of rising tides. But hard evidence of whether such a collapse occurred—and if it did, how fast the melt went—has remained scarce.Next week, the National Science Foundation will fund a 5-year project, costing more than $3 million, that will seek evidence of this collapse from gases trapped in tiny bubbles encased in a 2.5 kilometer-long tube of ice.