US Secretary of state Abraham Lincoln said on the 19th that the United States had formally rejoined the Paris Agreement on the same day.

In a statement on the same day, Buchanan said that the Paris Agreement is "an unprecedented framework for global action", which helps to avoid catastrophic global warming and enhance the ability to cope with the impact of climate change on a global scale.

Bulin said that climate change and science diplomacy are no longer "appendages" in the discussion of U.S. foreign policy. Coping with the real threat brought by climate change and listening to scientists' suggestions will be the top priority of U.S. domestic and foreign policy.

Speaking at the online special meeting of the Munich Security Conference on the same day, US President Biden said that he will preside over the summit on climate issues on World Earth Day on April 22 to promote more ambitious measures by major greenhouse gas emitters, including the United States.

On January 20, Biden signed an executive order on his first day as president, announcing that the United States would rejoin the Paris Agreement on climate change. In June 2017, former US President trump announced that the United States would withdraw from the Paris Agreement, saying that the agreement brought "severe financial and economic burden" to the United States. On November 4, 2020, the United States officially withdrew from the agreement. This move has been widely criticized by the United States and the international community.

According to the Paris agreement reached at the 2015 UN climate change conference, all parties will strengthen the global response to the threat of climate change, control the rise of global average temperature within 2 ℃ compared with the pre industrial level, and strive to control the temperature rise within 1.5 ℃. The world will achieve the peak of greenhouse gas emissions as soon as possible, and achieve zero net greenhouse gas emissions in the second half of this century.

Source: Xinhuanet