CHENNAI Climate talks between representatives of the group of 20 countries (G20) failed to reach a consensus on emission reduction and mitigation targets, an official said.

Developed countries in the group demanded mitigation of greenhouse gas (GHG) emissions by 2025 to limit global warming to around 1.5°C, and a reduction of absolute GHG emissions by 43% by 2030.

Both demands were opposed by developing countries, the official who did not want to be named said.

(Reporting Praveen Paramasivam in Chennai; Sarita Chaganti Singh and Aftab Ahmed in Delhi; Kate Abnett in Brussels; editing by John Stonestreet)