Although all countries are showing positive attitudes, it is undeniable that there are still "old-fashioned" differences and games between developed and developing countries. First, how will the principle of "common but differentiated responsibilities" be reflected in specific areas such as mitigation, adaptation, capital and technology? For more than 20 years, with the continuous evolution of the world economic and trade pattern, this principle is showing a weakening and weakening trend. Second, how to implement the financing problem? At the Copenhagen conference, developed countries promised to establish a "green climate fund" to support developing countries, with an annual investment of 654.38 billion US dollars from 2065.438+03 to 2020. However, it was not until 20 14 that the total amount of "green climate fund" barely exceeded 10 billion US dollars. How to fill this huge hole? Does this money come from the public sector or the private sector? How to calculate in the future? These problems may be difficult to solve overnight. Third, what is the nature of the new agreement and is it legally binding? The United States said that the Paris climate talks will not reach a "treaty" that legally requires countries to reduce emissions. However, the host country, France, stated that the outcome of the summit must be legally binding. Main achievements: Nearly 200 parties to the Paris Agreement and the United Nations Framework Convention on Climate Change unanimously agreed to adopt the Paris Agreement. Article 29 of the Agreement includes objectives, mitigation, adaptation, loss and damage, finance, technology, capacity building, transparency, global inventory and so on. According to the Paris Agreement, all parties will strengthen the global response to the threat of climate change, control the global average temperature increase within 2 degrees Celsius compared with the pre-industrial level, and strive to control the temperature increase within 65,438 0.5 degrees Celsius. Global greenhouse gas emissions will peak as soon as possible, and net greenhouse gas emissions will be zero in the second half of this century. According to the agreement, all parties will participate in the global action against climate change in the form of "independent contribution". Developed countries will continue to take the lead in reducing emissions and strengthen financial, technological and capacity-building support for developing countries to help them mitigate and adapt to climate change. Starting from 2023, an inventory of the overall progress of global actions will be made every five years to help countries improve their efforts, strengthen international cooperation and achieve the long-term goal of global response to climate change.