Temperatures could rise 4 degrees by 2060

(Daily Telegraph): As the latest round of UN climate talks gets under way, scientists said that even with strong political will, the chances of changing energy systems fast enough to limit global warming to less than 2C is "slim" and eventual temperature rises of 3C or 4C are much more likely. A recent study by the UN Environment Programme showed the voluntary pledges by countries to curb emissions under the Copenhagen Accord, drawn up at the climate talks last year, will not be sufficient to keep global temperatures from rising by more than 2C – widely recognised as a "guard rail" below which dangerous climate change could mostly be avoided.

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