Global warming is among the more pressing issues in ecology and environmental science. Until now, the important issue of the role of biotic feedback has not been addressed in one volume. Changes in biotic processes create feedback into the climate which has implications for global climatic change. Important biogenic gases and the feedback generated by them from the warming of the earth, biospheric changes of forest regions and the feedback caused by disturbance to these forests, and biofeedback in the ocean caused by overall climatic changes, are all part of the biotic processes which affect global climatic change. George Woodwell is a leading worker on global warming, and one of the most influential environmental scientists, and has drawn together a superb group of authors to present the current scientific understanding of this issue in one volume.