The aim of the agreement is to reduce global warming as described in Article 2 and to encourage the implementation of the UNFCCC through the following « strengthening »: The agreement stated that it does not would only be in force (and therefore fully effective) if 55 countries that produce at least 55% of global greenhouse gas emissions (according to a 2015 list) accept or adhere to the treaty.   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. We have an agreement and we now have a chance to achieve our goal. We cannot say that without an agreement. The Paris Agreement will allow us to reach the target of 2 degrees Celsius or less. We did not expect to leave Paris with commitments to achieve this goal, but with a process that will lead us to it. And that is what the agreement provides.
Under the Paris Agreement, each country must define, plan and report regularly on its contribution to the fight against global warming.  There is no mechanism for a country to set an emission target for a specified date, but any target should go beyond the previous targets. The United States formally withdrew from the agreement the day after the 2020 presidential election, although President-elect Joe Biden said America would return to the agreement after his inauguration.  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.  The Paris Agreement was launched at the signing on April 22, 2016 (Earth Day) at a ceremony in New York.  After the agreement was ratified by several EU member states in October 2016, there were enough countries that had ratified the agreement to produce enough greenhouse gases in the world for the agreement to enter into force.  The agreement came into force on November 4, 2016.  Banks, investors, insurers and regulators are increasingly analyzing and adapting their financial strategies, taking into account the risks and opportunities of the energy transition. Investments in renewable energy are currently a common practice for most financial institutions.