Human first paid direct attention to climate change in the 1970s. In 1979, the World Meteorological Organization (WMO) convened the first World Climate Conference and endorsed plans to establish a World Climate Programme (WCP), through reasonable means of climate resources, to foresee and prevent potential changes in climate and to protect climate environment and resources. In 1988, the Intergovernmental Panel on Climate Change (IPCC) was established with the joint efforts of the United Nations Environment Programme (UNEP）and the WMO. It is an institution focusing on scientific consultation about international negotiations and regulations over climate change. At the same time, the negotiations for the United Nations Framework Convention on Climate Change (UNFCCC), under the promotion of the IPPC, were initiated in 1990. And UNFCCC was finalized and opened for signature in 1992 and officially entered into force in 1994.