Representatives of the Presidency of the Council and the European Commission have tabled the official ratification documents with the SECRETARy-general of the United Nations, who is the custodian of the agreement. The Katowice package adopted at the United Nations Climate Change Conference (COP24) in December 2018 contains common and detailed rules, procedures and guidelines that affect the Paris agreement in the operation. The conclusions of the Environment Council underlined the importance of using the appropriate instruments to meet Member States` commitments. The EU will continue to implement its climate policy, outlined in the EU`s 2030 climate and energy policy, which was adopted by the European Council in October 2014. The main objective is to reduce national greenhouse gas emissions by at least 40% by 2030 compared to 1990 levels. 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.   Some of the specific results of the increased attention to adjustment financing in Paris are the announcement by the G7 countries of a $420 million package for climate risk insurance and the launch of a Climate Risk and Early Warning Systems (CREWS) initiative.  In 2016, the Obama administration awarded a $500 million grant to the „Green Climate Fund“ as „the first part of a $3 billion commitment made at the Paris climate talks.“    To date, the Green Climate Fund has received more than $10 billion in commitments.
The commitments come mainly from developed countries such as France, the United States and Japan, but also from developing countries such as Mexico, Indonesia and Vietnam.  The EU is committed to the Paris Agreement and intends to play a leading role in the fight against climate change. By analysis by the Intergovernmental Panel on Climate Change (IPCC), a carbon „budget“ based on total emissions of carbon dioxide into the atmosphere (relative to the annual emission rate) has been estimated to limit global warming to 1.5 degrees Celsius and 2.25 trillion tonnes from the 1870 period. This represents a significant increase from the initial estimates of the Paris climate agreement (out of a total of 2000 billion tonnes) to reach the global warming target of 1.5oC, a target that would be reached in 2020 for 2017 emission rates. [Clarification needed] In addition, annual CO2 emissions are estimated at 40 billion tonnes per year in 2017.