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. The NRDC is working to make the Global Climate Climate Action Summit a success by inspiring more ambitious commitments to the historic 2015 agreement and enhanced pollution reduction initiatives. President Trump is pulling us out of the Paris climate agreement. On August 4, 2017, the Trump administration officially announced to the United Nations that the United States intends to withdraw from the Paris Agreement as soon as it is legally entitled to it.  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.   Negotiators of the agreement stated that the INDCs presented at the time of the Paris conference are insufficient and found that „estimates of aggregate greenhouse gas emissions in 2025 and 2030, resulting from planned contributions at the national level, do not fall into scenarios at 2oC of the lowest cost, but lead to a projected level of 55 gigatonnes in 2030.“ and acknowledges that „much greater efforts to reduce emissions will be needed to keep the global average temperature increase to less than 2 degrees Celsius, reducing emissions to 40 gigatonnes or 1.5 degrees Celsius.“  [Clarification needed] At the 2011 Unfeding Climate Change Conference, the Durban Platform (and the ad hoc working group on the Durban Platform for Enhanced Action) was created to negotiate a legal instrument to mitigate climate change from 2020.