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| | Image via Rensselaer Polytechnic Institute. | | |
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Countdown to calving at Antarctic ice shelf | | Growing cracks show that the Brunt Ice Shelf is poised to release an iceberg about twice the size of New York City. See the images. Cracks in Brunt Ice Shelf, as of January 23. Note the research stations, part of the British Antarctic Survey, whose presence on the ice shelf began in 1955. Halley IV had to be closed in 1992, due to destabilized ice. In 2016-2017, the Halley VI station was relocated to a safer location (Halley VIa) upstream of the growing crack. Image via NASA Earth Observatory. | | |
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