In a world that has never produced so much oil and gas, the United Nations is seeking to persuade producers they need to leave three-quarters of their reserves in the ground and explore cleaner energy to combat climate change.
China, the biggest country by population and carbon emissions, called on developed nations to provide $490 billion of climate funding to poorer countries through 2020 to help them adapt to droughts and floods.
Success at climate-change talks in Mexico may depend on companies such as Siemens AG and Wal-Mart Stores Inc. prodding governments into action, said Christiana Figueres , the United Nations climate chief.
Countries participating in United Nations-sponsored carbon trading want to expand and improve the market rather than “kill” it, according to the executive secretary of the UN Framework Convention on Climate Change.
U.S. legislators have disengaged from the fight against global warming, even as the administration of Barack Obama remains committed to its emissions-reduction target, according to the United Nations climate chief.