According to this article by Mart?n, the guys running Google are very concerned about the impact of computing on the environment. Larry Page believes the biggest constraint on Google’s growth is going to be availability of electricity.
There is an obvious short-term remedy to this issue: move Internet server hardware to temperate or cool climates. Server farms in warm climates expend a lot of energy on cooling. The same heat that computers generate could potentially heat buildings in a cold country!
Of course, this isn’t much good to reduce the consumption of client PCs, which must consume far more energy than Google’s clusters.
So Google is already building a dark fiber network. Will the company now turn its attention to building its own power grid based on renewable energy?