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Discussions to try to reach historic agreement on Antarctica

24 October 2012 Last updated at 10:59 BST

It is hoped that an historic agreement on the protection of huge areas of the Antarctic can be reached in the next week.

A meeting of the 27 countries of the Commission for the Conservation of Living Marine Resources is being held in Hobart in Australia. But there are still differences about how to protect this unique ecosystem.

Duncan Kennedy reports