 With ratification by the European Union, the Agreement obtained enough parties to enter into effect as of 4 November 2016.As of February 2020, 194 states and the European Union have signed the Agreement.188 states and the EU, representing almost 97% of global greenhouse gas emissions, have ratified or acceded to the Agreement, including China, the United States (which has notified the UN of its decision to withdraw from the agreement) and India, the countries with three of the four largest greenhouse gas emissions of the UNFCC members total (about 42% together).