Climate change is increasingly becoming the hotspot issue of glolal attention. On the basis of review of the process in response to climate change of international community, the status of carbon emissions of the world and China, the technology potential for China to mitigate carbon emissions have been analyzed. Meanwhile, the macro-impacts of China's mitigation of carbon emissions, the equity of global mitigation of climate change, and the impacts of international cooperation actions in the field of climate change have also been explored. In view of the analyses the ideas and strategies of China's mitigation of climate change are put forward, indicating that China should positively adapt to the trends of international political, economic and trade pattern change and bring the strategies of mitigating climate change into national social and economic development strategy and planning to promote comprehensive, harmonious and sustainable development of national economy and society under the situation of global response to climate change.

Glaciers in western China are one of the key elements driving changes of water resources because glacierized regions form the formation areas of many large river systems in the region. Influenced by global/regional warming changes in climate, many glaciers have been retreating. In contrast with the intensive warming and glacier shrinkage both in global and in High Asia during recent 30 years, however, two peculiar phenomena have occurred in the Tibetan Plateau: 1) the temperature dropping about 0.6℃ in the northern Tibetan Plateau with very small glacier decrease rate and melt water reduction, and 2) considerable number of glaciers has been advancing in the southeastern Tibetan Plateau with the increase of high precipitation. These facts indicate the complexity of climate change and glacier dynamic response to it. Furthermore, remote sensing technique is imperatively required in monitoring glacier changes in more regions to derive regional characteristics of these changes.