Barack Obama, Narendra Modi, Francois Hollande at climate change summit in Paris

December 2, 2015 15:35 IST 4 of 5
German Chancellor Angela Merkel (R) talks with Canada's Prime Minister Justin Trudeau as they attend a meeting on Carbon Pricing on the opening day of the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris. Credit: Reuters