Sir David Attenborough on global warming

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Sir David Attenborough's new series Frozen Planet looks at life at the North and South Poles.

Sir David says he is back on screen in the seven-part series to express his "personal view" on the effects of global warming.

Frozen Planet starts on 26 October at 21:00 BST on BBC One

Richard Bacon broadcasts Monday to Thursday 14:00 to 1600 on BBC Radio 5 live.

To hear more Radio 5 live highlights, please visit the best bits (www.bbc.co.uk/5live/bestbits) page.

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