有关美国退出巴黎气候协定的细节

On June 1, 2017, United States President Donald Trump announced that the U.S. would cease all participation in the 2015 Paris Agreement on climate change mitigation. 

In accordance with Article 28 of the Paris Agreement, the earliest possible effective withdrawal date by the United States cannot be before November 4, 2020, four years after the Agreement came into effect in the United States and one day after the 2020 U.S. presidential election. The White House later clarified that the U.S. will abide by the four-year exit process. Until the withdrawal takes effect, the United States may be obligated to maintain its commitments under the Agreement, such as the requirement to continue reporting its emissions to the United Nations.