In contrast to the ever-increasing focus on China's CO2 emissions, little attention has been given to its CH4 emissions, the second largest greenhouse gas. Presented in this paper is a comprehensive assessment of the CH4 emissions in Mainland China by source and region based on the latest...

In order to make analysis on consumption structure of rural residents, the paper make a principle component analysis on consumption expenditure per capita of rural residents in different areas of 2009 based on statistics of China statistical yearbook of 2010. Selecting a principal component, the...