A gap opens up under Antarctic glacier — big enough to fit two-thirds of ManhattanScientists maintain discovered an huge void under an Antarctic glacier,sparking concern that the ice sheet is melting faster than anyone had realized — and spotlighting the dire threat posed by rising seas to coastal cities around the world, including New York City and Miami. The cavity under Thwaites Glacier in West Antarctica is about six miles long and 1000 feet deep — representing the loss of 14 billion tons of ice.
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