Since Trump`s announcement, U.S. envoys – as well as on behalf – have continued to participate in U.N. climate negotiations to shore up the details of the agreement. Meanwhile, thousands of heads of state and government have intervened across the country to fill the void created by the lack of federal climate leadership, reflecting the will of the vast majority of Americans who support the Paris agreement. City and state officials, business leaders, universities and individuals included a base amount to participate in initiatives such as America`s Pledge, the United States Climate Alliance, We Are Still In and the American Cities Climate Challenge. Complementary and sometimes overlapping movements aim to deepen and accelerate efforts to combat climate change at the local, regional and national levels. Each of these efforts focuses on the willingness of the United States to work toward the goals of the Paris Agreement, despite Trump`s attempts to lead the country in the opposite direction. At the 2011 UN Climate Change Conference, the Durban Platform (and the ad hoc working group on the Durban Platform for Enhanced Action) were created to negotiate a legal instrument to mitigate climate change from 2020. The resulting agreement is expected to be adopted in 2015. On August 4, 2017, the Trump administration formally communicated to the United Nations that the United States intends to withdraw from the Paris Agreement as soon as it is legally entitled to do so.  The formal declaration of resignation could not be submitted until after the agreement for the United States came into force on November 4, 2019 for a three-year date.   On November 4, 2019, the U.S. government filed the withdrawal notice with the Secretary-General of the United Nations, custodian of the agreement, and formally withdrew from the Paris Agreement a year later, when the withdrawal came into effect.  After the November 2020 elections, President-elect Joe Biden promised to reinstate the United States in the Paris Agreement for his first day in office and renew the U.S. commitment to climate change mitigation.  From 30 November to 11 December 2015, France hosted representatives from 196 countries at the UN Climate Change Conference (UN), one of the largest and most ambitious global meetings ever held. The goal was nothing less than a binding and universal agreement to limit greenhouse gas emissions to levels that would prevent global temperatures from rising more than 2oC above the lower temperature levels set before the start of the industrial revolution.
Although the United States and Turkey are not parties to the agreement, as they have not indicated their intention to withdraw from the 1992 UNFCCC, they will continue to be required, as an “Annex 1” country under the UNFCCC, to end national communications and establish an annual inventory of greenhouse gases.  President Obama was able to formally enshrine the United States in the agreement through executive measures because he did not impose new legal obligations on the country. The United States already has a number of instruments on the books, under laws already passed by Congress to reduce carbon pollution.