The parties to The Convention admit that changes in the earth's climate and its adverse effects are a common concern of mankind, and they’re concerned that human activity has greatly increased the concentration of greenhouse gases in the atmosphere, which has enhanced the natural greenhouse effect, and on average, will lead to further warming of the earth's surface and atmosphere, and may have adverse effects on natural ecosystems and human beings. It should be noted that the largest portion of the world's greenhouse gas emissions comes from developed countries in history; per capita emissions in developing countries remain relatively low; the share of developing countries in global emissions will increase to meet their social and developmental needs; they have realized the role and importance of greenhouse gas sinks and reservoirs in terrestrial and marine ecosystems and noted that there are many uncertainties in the prediction of climate change, especially in its time, amplitude and area pattern, and admitted the globality of climatic change; all countries are required to carry out the most extensive cooperation in accordance with their common but differentiated responsibilities and their respective capabilities and their social and economic conditions, and to take part in effective and appropriate international responses.

According to the relevant provisions of the United Nations Conference on the Human Environment Declaration passed in Stockholm on June 16, 1972 and the Charter of the United Nations and the principles of international law, all countries have sovereign rights to develop their own resources according to their own environmental and developmental policies, and also have the responsibility to ensure that the activities within its jurisdiction or control do not cause damage to the environment of other countries or to areas other than those within the jurisdiction of the state, reaffirm the principle of national sovereignty in international cooperation in dealing with climate change, and recognize the need for effective legislation in all countries; various environmental standards, management objectives and priorities shall reflect the circumstances and developments to which they are applicable; and moreover, the standards adopted by some countries may be inappropriate for other countries, especially developing countries, and may cause them to suffer undue economic and social costs…