Economic reforms in China began in 1979 and initiated some of the most fundamental changes ever to occur in any country. While allowing some of the most astonishing economic growth the world has seen, they have also induced some of the most profound social and environmental shifts. This volume looks at two aspects of the impacts of the reforms, firstly on the demography of the country (especially migration and urbanization), and secondly on the environment. A third section examines various problems of environmental degradation in relation to natural processes and human efforts to mitigate their effects.