The Oxford Companion to Global Change is an up-to-date, comprehensive, interdisciplinary guide to the range of issues surrounding natural and human-induced changes in the Earth's environment. In one convenient volume, the Companion brings together current knowledge about the relations between technological, social, demographic, economic, and political factors as well as biological, chemical, and physical systems. It is an essential reference work for students, teachers, researchers, and other professionals seeking to understand any aspect of global change.