Pledges so far will still lead to catastrophic warming: report

Emissions cuts offered so far at the Copenhagen climate change summit will still lead to global temperatures rising by an average of 3C,media claimed on Friday quoting a confidential UN analysis.

With the talks entering the final stages,the emergence of the document seriously undermines the statements by governments that they are aiming to limit emissions to a level of ensuring no more than a 2C temperature rise over the next century and indicates that the last day of negotiations will be extremely challenging,the Guardian reported.

A rise of 3 degree Celsius would mean up to 170 million more people suffering several coastal floods and 550 million more at risk of hunger,an expert report has stated.

Even a rise of 2C would lead to a sharp decline in tropical crop yields,more flooding and droughts.