New National Climate Action Plans Trickle in During Climate Week, But Still Add Up to a Lot of Warming

September 26, 2025

Scores of world leaders reaffirmed their commitment to limiting human-caused global warming at Wednesday’s Climate Week summit during the United Nations General Assembly.

China’s President Xi Jinping speaks remotely during the “Climate Summit 2025” on the sidelines of the United Nations General Assembly at the UN headquarters in New York City on September 24, 2025. President Xi Jinping told the United Nations on Wednesday that by 2035, China will reduce economy-wide net greenhouse gas emissions by 7-10 percent from peak levels. (Photo by CHARLY TRIBALLEAU / AFP) (Photo by CHARLY TRIBALLEAU/AFP via Getty Images)