What Is the Paris Agreement-COP21 ?

 Paris Agreement 

 The Paris Agreement, also known as the Paris Climate Accord, is an agreement among the leaders of over 180 countries to reduce greenhouse gas emissions and limit the global temperature increase to below 2 degrees Celsius (3.6 F) above preindustrial levels by the year 2100. Ideally, the agreement aims to keep the increases to below 1.5 degrees Celsius (2.7 F). The agreement is also called the 21st Conference of the Parties to the U.N. Framework Convention on Climate Change (UNFCCC). The two-week conference leading to the agreement was held in Paris in December 2015. As of December 2020, 194 UNFCCC members have signed the agreement, and 189 have become party to it. The Paris Agreement is a replacement for the 2005 Kyoto Protocol. Key Takeaways  The Paris Agreement is a U.N.-sponsored international agreement to reduce greenhouse gas emissions.  The agreement was formed in 2015 and has over 190 signatory nations.  The U.S. officially exited the Paris Agreement in November 2020.  President Joe Biden signed an executive order on Jan. 20, 2021, announcing that the U.S. would rejoin the Paris Agreement.