Copenhagen Prime Minister on Friday left for home after attending the UN Summit on Climate Change here amid reports that world countries have reached a “broad consensus” on an agreement to tackle global warming.

Dr. Singh, who arrived here on Thursday to join leaders from over 110 countries, delayed his departure by about five hours as he went back to the summit venue to hold negotiations with leaders of China, Brazil and South Africa.

The leaders of the four countries also held a meeting with Barack Obama, after which the US President said they have reached a “meaningful” deal to curb greenhouse gas emissions.

Officials said a broad consensus has been reached among the world countries on an agreement to tackle climate change.

Shyam Saran, the Prime Minister’s Special Envoy on Climate Change, is not accompanying Singh to New Delhi. He stayed behind in Copenhagen to “fine tune” the agreement.

Speaking at the plenary session of the Summit on Thursday, Dr. Singh made it clear that future negotiations on tackling the menace should be based on equitable burden sharing as enshrined in Kyoto Protocol and Bali mandate.

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