Biden Wants to Be the Climate President. He’ll Need Some Help From Xi Jinping.

The U.S.-China relationship is at its lowest point in a half century, but there are also converging interests on global warming. How effectively the two biggest economies – and sources of the climate problem – can pivot their economies away from fossil fuels is crucial to stemming global warming. An analysis by two research organizations, the Asia Society Policy Institute and Climate Analytics, to be issued next week but reviewed by The New York Times, concludes that China would have to peak its carbon emissions by 2025, five years earlier than the country has promised, and phase out coal by 2040 in order to keep global temperatures close to the upper limits laid out in the Paris Agreement.