Pessimism on climate deal hangs over carbon market

* Climate deal uncertainty clouds investment decisions
* If no binding deal struck, will harm investments
By Nina Chestney
LONDON, Oct 20 (Reuters) - The uncertain outcome of December's climate summit in Copenhagen is hanging over the carbon market, denting confidence in the future of emissions trading, market participants said at a conference on Tuesday.
World leaders are working to meet a December deadline to replace or extend the Kyoto Protocol, which expires in 2012, with the aim of cutting greenhouse gas emissions and slowing global warming. (...)

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