The Paris Agreement is the world`s first comprehensive climate agreement.  As explained in the C2ES exit letter, the United States` participation in the Paris Agreement can only be decided by the President, without, among other things, seeking the Council and the approval of the Senate, due to the development of an existing treaty, the United Nations Framework Convention on Climate Change. If Biden is president, he would have enough authority to join it as an “executive convention.” The agreement is a massive redistribution of wealth from the United States to other countries. With a growth of 1%, renewable energy sources can meet part of our domestic demand, but with 3 or 4% growth that I expect, we need all forms of American energy available, or our country – (Applause) – will be seriously threatened by power cuts and power cuts, our businesses will often stop, and the American family will suffer the consequences in the form of lost jobs and a very low quality of life. The agreement stated that it would only enter into force (and therefore fully effective) if 55 countries that produce at least 55% of global greenhouse gas emissions (according to a list drawn up in 2015)  ratify, accept, approve or adhere to the agreement.   On April 1, 2016, the United States and China, which together account for nearly 40% of global emissions, issued a joint statement confirming that the two countries would sign the Paris climate agreement.  175 contracting parties (174 states and the European Union) signed the agreement on the first day of its signing.   On the same day, more than 20 countries announced plans to join the accession as soon as possible in 2016. The ratification by the European Union has achieved a sufficient number of contracting parties to enter into force on 4 November 2016.
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.