Page last updated at 19:49 GMT, Wednesday, 21 January 2009

New evidence on Antarctic warming

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The continent of Antarctica is warming up in step with the rest of the world, according to a new analysis.

Scientists say data from satellites and weather stations indicate a warming of about 0.6C over the last 50 years.

Writing in the journal Nature, they say the trend is "difficult to explain" without the effect of rising greenhouse gas levels in the atmosphere.

Christine McGourty reports.

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