Global Warming International Agreement
Limiting the increase in global temperature to less than 2°C compared to the pre-industrial era is one of the objectives. The United States, the world`s second-largest emitter, is the only country to withdraw from the deal, a step by President Donald J. Trump, which went into effect in November 2020. Some other countries have not officially approved the deal: Angola, Eritrea, Iran, Iraq, Libya, South Sudan, Turkey and Yemen. Every five years, countries will assess their progress in implementing the agreement through a process known as the global inventory; the first is scheduled for 2023. Countries set their own goals and there are no implementation mechanisms to ensure that they pursue them. Scientists have been warning for years of the disastrous environmental consequences if global temperature continues to rise at the current rate. The average temperature of the planet has already increased by about 1°C compared to pre-industrial levels. In a 2018 special report, the IPCC predicted that the world would reach a warming of 1.5°C between 2030 and 2052, without a dramatic reduction in carbon emissions.
The agreement stipulates that it would only enter into force (and therefore fully operational) if 55 countries emitting at least 55% of global greenhouse gas emissions (according to a list established in 2015)  ratify, accept, approve or accede to the agreement.   On April 1, 2016, the United States and China, which together account for nearly 40% of global emissions, made a joint statement confirming that the two countries would sign the Paris climate agreement.   175 parties (174 states and the European Union) signed the agreement on the first day of its entry for signature.   On the same day, more than 20 countries made a declaration of intention to accede as soon as possible in order to accede in 2016. With ratification by the European Union, the agreement obtained enough parts to enter into force on 4 November 2016. Paris Convention, 2015. The most important global climate agreement to date, the Paris Agreement, requires all countries to make commitments to reduce emissions. Governments set targets known as national contributions, with the aim of preventing the global average temperature from exceeding the pre-industrial level by 2°C (3.6°F) and strive to keep it below 1.5°C (2.7°F).
The parties agreed on the Durban Platform for enhanced measures, which provides the framework for the establishment of a new international emission reduction protocol. Under the Durban Platform, details of the new protocol are expected to be completed by 2015 and enter into force in 2020. The European Union also agreed to extend its Kyoto Protocol targets, which were due to expire at the end of 2012, in a second commitment period from 2013 to 2017. . . .