What may have been the world's tallest waterfall briefly formed on Greenland's ice sheet last year, draining a meltwater lake of 5 million cubic meters of water -- equivalent to 2,000 Olympic-sized swimming pools -- in just five hours. Ammar Johmani

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https://ift.tt/2LnkYHy Submitted December 06, 2019 at 03:09AM by 1920sremastered https://ift.tt/2OUiouU Ammar Johmani magazine