The heads of state and government from 147 countries have confirmed their participation at the summit that the climate conference opens in Paris (cop21) on Monday, organizers said.
Barack Obama (USA), Xi Jinping (China), Angela Merkel (Germany), Dilma Rousseff (Brazil) and Enrique Peña Nieto (Mexico) are among the leaders expected in Paris, said the French presidency of the cop21 aimed at sealing a global agreement that would curb dangerous global warming.