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Foreword
Green IT means many things to many people, but most definitions boil down to two key aspects:
internal and external. e first of these refers to the lowering of the energy consumption and car-
bon footprint of the IT process itself, and the second refers to the use of IT to lower the energy
consumption and carbon footprint of the whole organization. is book examines both.
Not so long ago, sustainability was a fringe issue. Environmentalism was the preserve of
“greenies” or “techies.” Now these issues are mainstream.
Green IT is a natural result of the world’s increasing interest in all things sustainable. e
term did not exist 5 yea