India faces the onerous task of balancing equity and environmental efficacy in the climate talks. It must not repeat the blunder that led to the Copenhagen disaster. THE climate conference in Durban, South Africa, could not have met at a worse or more worrying time. Rigorous scientific work has just been published, which shows that humankind has only a narrow window of opportunity to take climate actions so that global greenhouse gas (GHG) emissions peak by 2020 and fall sharply thereafter.