In 2015, world leaders agreed on ambitious new targets in the fight against climate change. On August 4, 2017, the Trump administration sent an official notice to the United Nations stating that the United States intends to withdraw from the Paris Agreement as soon as it is legally authorized to do so.  The call for withdrawal could only be submitted after the agreement for the United States was in force for 3 years on November 4, 2019.   On November 4, 2019, the U.S. government deposited the notice of withdrawal with the Secretary-General of the United Nations, depositary of the agreement, and formally withdrew from the Paris Climate Agreement a year later, when the withdrawal took effect.  After the November 2020 election, President-elect Joe Biden promised to reintroduce the United States into the Paris Agreement by his first day in office and renew America`s commitment to mitigating climate change.   They also agreed on the design of the 2018 Facilitative Dialogue (called the Talanoa Dialogue). .