Giant Antarctica Iceberg Puts Nasa On Alert

An iceberg bigger than Chicago is being monitored by Nasa after breaking into the ocean off Antarctica. NASA has been monitoring Antarctica's Pine Island Glacier since a crack was spotted in 2011, amid fears any iceberg could contribute to rising sea levels. "The iceberg is now well out of Pine Island Bay and will soon join the more general flow in the Southern Ocean," Grant Bigg, from the University of Sheffield, said in the NASA statement. An iceberg this big could take a year or more to melt, Robert Marsh, a scientist at the University of Southampton, said in an interview last year.

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