Beschreibung:
Jake Weltzin is Assistant Professor of Ecology and Evolutionary Biology at the University of Tennessee. Guy McPherson is Professor in the School of Renewable Natural Resources and the Department of Ecology and Evolutionary Biology at the University of Arizona.
By the beginning of the twenty-first century, few people could deny the reality of global change. But while most alarm has been over increasing temperatures, other changes are occurring in precipitation patterns--variations that may be due in part to global warming but also to factors such as changes in atmospheric circulation and land surfaces.