From BusinessWeek:
Consumers who want to weigh how their purchases affect the environment have plenty of guidelines and seals of approval to choose from for everything from cars to tissue paper. But finding out just how eco-friendly a computer is can be a bigger chore.
There are several competing yardsticks, each considering a different aspect of a computer’s greenness, be it energy consumption, use of toxic materials, or how easily it can be recycled. None by itself provides a complete picture. And since consumers aren’t demanding environmentally friendly computers in large numbers, makers of those machines have little incentive to market PCs that way.