Grand Canyon-sized rift discovered under Antarctic ice

Agence France-Presse: Scientists have discovered a rift the size of the Grand Canyon hidden under the Antarctic ice sheet, which they say is contributing to ice melt and a consequent rise in the sea level. The rift, some 1.5 kilometres (one mile) deep, 10 kilometres wide and 100 kilometres long, was found by researchers using radar to measure the subglacial topography, glaciologist Robert Bingham told AFP. "If you imagine the Grand Canyon but filled with ice and then even that whole feature is then also uniformly......

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