Introduction Climate change is related to human survival and development. Human activities since the industrial revolution, especially the cumulative emissions of greenhouse gases such as carbon dioxide produced by the massive consumption of fossil energy in developed countries, are the main cause of global climate change, which has brought serious consequences to the global ecosystem security and economic and social development, especially in developing countries. Great threat. Responding to climate change is a common cause of mankind. It requires the international community to unite and cooperate to deal with it under the framework of sustainable development, adhere to the path of green and low-carbon development, promote the building of a community with a shared future for mankind, and jointly build a clean and beautiful earth home. The global spread of the new crown pneumonia epidemic in 2020 has once again warned us that in the face of major infectious diseases, climate change and other common challenges of non-traditional security, human beings need a self-revolution, and all countries in the world must maintain unity and cooperation. The Paris Agreement adopted by the 21st Conference of the Parties to the United Nations Framework Convention on Climate Change (hereinafter referred to as the Convention) in 2015 established the goal of controlling global temperature rise to less than 2C above pre-industrial levels and striving to control The long-term goal of being within 1.5C defines the long-term vision and institutional arrangements for the global response to climate change, and defines the general direction of the future green and low-carbon transformation, which requires countries to work together to implement it. China has made historic and fundamental contributions to the conclusion, entry into force and implementation of the Paris Agreement, and actively promoted the reduction of greenhouse gas emissions in international shipping and aviation, which has been widely recognized and highly appreciated by the international community. In 2017, the 19th National Congress of the Communist Party of China proposed to build a prosperous, strong, democratic, civilized, harmonious and beautiful socialist modern power by the middle of this century, which laid the main tone for the formulation of China&#39;s long-term low-emission development strategy. September 22, 2020