Hindu: If national targets are not revised in the Copenhagen Accord, the international pledge which was agreed at last year’s Copenhagen’s COP15 climate change conference, a global temperature increase of up to 4.2º C and the end of coral reefs could become reality by 2100. Just ahead of the next United Nations Climate Change Conference, which starts on 4 October in Tianjin, China, a new report published yesterday (September 29), in Environmental Research Letters describes how, due to lack …