Population migration caused by climate change has become one of the hot issues in the international community. This paper reviews the researches on climate change and population migration in western academic circles since the end of the 20th century. It is found that population migration is not only a response mechanism to climate change but also a complex result of a series of national background, social, political and economic environment collisions. Aiming at the problem of climate change, this paper puts forward that all countries should strengthen collection and sharing of reliable data on climate-related migration, and focus on improving resettlement and livelihood of migrants in their destinations when formulating policies related to migration. This paper introduces the current international research trends of climate change and population migration and looks forward to future research prospects to effectively solve the problem of climate migration and resolve the social risks faced by climate migrants.

climate change  /  population migration  /  climate migration  /  migration mechanism