Global climate change resulting from human activities, particularly related to anthropogenic release of CO 2 to the atmosphere, is one of the most critical environmental problems facing human beings today. Scientists in West Country, mainly in US and Canada, are seeking to sequester C in agricultural soil (C sink) to offset their commitment to the Kyoto act. This paper reviews the progress in this field and suggests that the potential of Chinese agricultural soil sequestering C is over the sum of the US an...