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Pine Island Glacier’s retreat ‘irreversible’

January 18, 2014

Full Article at http://www.bbc.co.uk/news/science-environment-25729750

By Jonathan Amos

Antarctica’s mighty Pine Island Glacier (PIG) is now very probably in a headlong, self-sustaining retreat.

This is the conclusion of three teams that have modelled its behaviour.

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This means PIG is set to become an even more significant contributor to global sea level rise – on the order of perhaps 3.5-10mm in the next 20 years.

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PIG is a colossal feature. Covering more than 160,000 sq km (two-thirds the size of the UK), it drains something like 20% of all the ice flowing off the west of the White Continent.

Satellite and airborne measurements have recorded a marked thinning and a surge in velocity in recent decades.

Full Article at http://www.bbc.co.uk/news/science-environment-25729750

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