To contribute to the objectives of the agreement, countries presented broad national climate change plans (national contributions, NDCs). These are not yet sufficient to meet the temperature targets, but the agreement sets out the way forward for further measures. President Obama was able, through executive action, to formally integrate the United States into the international agreement, because he did not impose new legal obligations on the country. The United States already has a number of instruments in its books, in line with laws already passed by Congress, to reduce carbon pollution. The country formally acceded to the agreement in September 2016, after presenting its proposal for participation. The Paris Agreement can only enter into force if at least 55 countries representing at least 55% of global emissions have formally acceded to it. This happened on October 5, 2016 and the agreement entered into force 30 days later on November 4, 2016. While the expanded transparency framework is universal, as is the global inventory to be held every five years, the framework aims to provide “integrated flexibility” to distinguish between the capacities of developed and developing countries. In this context, the Paris Agreement includes provisions to improve the capacity building framework.  The agreement recognises the different circumstances of some countries and notes in particular that the technical expert review for each country takes into account that country`s specific reporting capacity.  The agreement also develops an initiative to enhance transparency to help developing countries put in place the institutions and processes necessary to comply with the transparency framework.  Once a party has acceded to the agreement, it cannot begin the withdrawal process for three years, but there is no financial penalty for leaving. The implementation of the agreement by all Member States is assessed every five years and the first evaluation will take place in 2023.
The result will be used as a contribution to member States` new national contributions.  The inventory will not be one of the contributions/performance of each country, but of a collective analysis of what has been achieved and what remains to be done. When the agreement garnered enough signatures to cross the threshold on October 5, 2016, US President Barack Obama said: “Even if we achieve every goal. We will only reach part of where we need to go. He also said that “this agreement will help delay or avoid some of the worst consequences of climate change. It will help other nations reduce their emissions over time and set bolder targets as technology advances, all under a strong transparency system that will allow each nation to assess the progress of all other nations. “  The Kyoto Protocol, a pioneering environmental agreement adopted at COP3 in Japan in 1997, is the first time that nations have agreed on legal country-specific emission reduction targets. . .