How each country is on track to meet its obligations under the Paris Agreement can be constantly monitored online (via the Climate Action Tracker  and the climate clock). “The withdrawal of the United States, if supported by the next government, will inevitably lead some countries to reduce their efforts to implement existing commitments,” Oppenheimer said. In the run-up to the Paris meeting, the United Nations has instructed countries to present plans detailing how they intend to reduce greenhouse gas emissions. These plans have been technically referred to as planned national contributions (INDC). As of December 10, 2015, 185 countries had introduced measures to limit or reduce their greenhouse gas emissions by 2025 or 2030. In 2014, the United States announced its intention to reduce its emissions by 26-28% from 2005 levels by 2025. To achieve this goal, the country`s Clean Power Plan should set limits for existing and projected emissions from power plants. China, the country that emits the most greenhouse gases as a whole, has set a goal of reaching its carbon dioxide emissions “around 2030 and making the best efforts to reach an early peak.” The Chinese authorities have also sought to reduce carbon dioxide emissions per unit of gross domestic product (GDP) by 60-65% compared to 2005. Currently, 197 countries – every nation on earth, the last signatory is war-torn Syria – have adopted the Paris Agreement. 179 of them have consolidated their climate proposals with official approval, including, for the time being, the United States. The only major emitters that have yet to formally accede to the agreement are Russia, Turkey and Iran. The United States, which has always ratified the UN`s 187 list, began withdrawing from the agreement in 2019 and will withdraw on November 4 of that year. President Donald Trump doubts that greenhouse gas emissions are causing dangerous levels of global warming.
A “national communication” is a kind of report presented by countries that have ratified the United Nations Framework Convention on Climate Change (UNFCCC).  Developed countries are required to submit national submissions every four years and developing countries should do so.    Some least developed countries have not submitted national communications in the past 5-15 years, mainly due to capacity constraints. Turkey and three major oil-exporting nations are among the seven countries that have yet to ratify the 2015 Paris climate agreement. Angola joined Kyrgyzstan and Lebanon and ratified in 2020, meaning the 190-nation agreement was formally approved by 197 nations. The NDC partnership was launched at COP22 in Marrakech to improve cooperation so that countries have access to the technical knowledge and financial support they need to achieve major climate and sustainable development goals. The NDC partnership is led by a steering committee made up of industrialized and developing countries and international institutions and is supported by a support unit organized by the World Resources Institute and based in Washington, D.C. and Bonn, Germany. The NDC partnership is co-chaired by the governments of Costa Rica and the Netherlands and has 93 Member States, 21 institutional partners and 10 associate members.
International agreements are initially signed to indicate their intention to do so, but they only become binding through ratification. It may be an act of Parliament or some other formal adoption. Processes vary from country to country. Former U.S. President Barack Obama used controversial executive powers to ratify the 2016 Paris Agreement. But without the United States, the balance between the parties that signed the Paris agreement shifts in China`s favor on key issues that have not yet been resolved.