The U.S. power industry would struggle to meet presidential hopeful Joe Biden's proposed mandate that it become carbon neutral by 2035 without some big breakthroughs in clean energy technology.
America's biggest oil and gas lobby group is ramping up its advertising spending ahead of the November election to persuade voters that natural gas is a climate-friendly fuel, according to ad buying data.
Brazil's negotiators already face a tough job at United Nations climate talks, given anger at President Jair Bolsonaro's stance on the Amazon, but it has become doubly difficult as they are in the dark on their own government's aims.
German schoolteacher Verena Brunschweiger is part of a growing movement of women and young people who have vowed not to have a families out of concern about a looming climate change crisis.