Gaias Body : Toward a Physiology of Earth

If theres such a thing as Gaia--if Earths biosphere really is a self -sustaining meta-organism--then it must have something like a physiology. What does this consist of? What are the systems, processes and functions that make it work? Gaias Body looks at the biogeographical regions, essential substances, and great chemical cycles that underlie the living system that is earths biosphere. This is the book that puts Gaia theory on a firm scientific foundation.