JSHpostcard May 27, 2015 at 11:51AM

Posted from Instagram
My latest offering for @everydayclimatechange on Instagram, a shot I took on assignment for @Greenpeace — A massive iceberg floats in the Southern Ocean, off of #Antarctica. A report published recently in #Science journal states that the ice shelves around the edge of Antarctica are melting faster than previously thought. These ice shelves act as buttresses to the ice on land, and help slow the flow of glacial ice into the oceans. The West Antarctic Ice Sheet has been “long regarded as the more vulnerable part of the continent to climate change.”
To quote from the report, “The floating ice shelves surrounding the Antarctic Ice Sheet restrain the grounded ice-sheet flow. Thinning of an ice shelf reduces this effect, leading to an increase in ice discharge to the ocean. Using eighteen years of continuous satellite radar altimeter observations we have computed decadal-scale changes in ice-shelf thickness around the Antarctic continent. Overall, average ice-shelf volume change accelerated from negligible loss at 25 ± 64 km3 per year for 1994-2003 to rapid loss of 310 ± 74 km3 per year for 2003-2012. West Antarctic losses increased by 70% in the last decade, and earlier volume gain by East Antarctic ice shelves ceased. In the Amundsen and Bellingshausen regions, some ice shelves have lost up to 18% of their thickness in less than two decades.”
Read the full article in Science journal here: http://ift.tt/1D2rThh
#everydayclimatechange #climatechange #globalwarming #risingsealevels #iceberg #JSHarchive #JeremySuttonHibbert

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