Page last updated at 09:35 GMT, Wednesday, 9 January 2013

Can the Arctic deliver an oil revolution?

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The world's biggest oil companies are pouring billions into drilling in the Arctic but how long will it be before the oil flows?

One of the most respected energy economists, Fatih Birol, tells HARDtalk there are huge environmental and technological challenges ahead before the Arctic oil revolution can become a reality.

You can watch this programme on BBC World at 0430, 0930, 1530, 2130 on Wednesday 9 January and at 0430 GMT on Wednesday 9 January and 0030 GMT on Thursday 10 January 2013.

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