Tonight's Newsnight on BBC 2 (2230 GMT) is devoted to the question - was 2005 a tipping point for both the oil supply and climate change. Watch it online live in broadband at www.bbc.co.uk/newsnight.
Myself and our science editor Susan Watts will be laying out the arguments and they'll be picked apart by an international panel of people who should know the answers. Chuck your own opinions my way by hitting the comment button.
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