In the long run, being more efficient at *burning coal* just isn't environmentally-friendly. DataCenter Knowledge's article follows our own on the Environmental Impact of the Internet: http://cartanova.ca/green-community-blog/item/71-the-environmental-impact-of-the-internet We quote them, so I'm guessing they saw it and posted their article. (although they have an excellent series of pieces addressing this issue already). In short, things don't look so good for the earth these days (but you already knew that :)