Wired's Cade Metz has a post on Facebook's frustrated efforts to buy renewable energy for its data centers.
Facebook has come a long way from when it built its first data center in Prineville, Oregon, choosing coal power in Oregon. Why coal? Because coal power was more abundant, therefore lower cost than hydropower. The attention from this event covered by Matt Stansbery and then others helped to make Facebook the target of Greenpeace.
Now Facebook is considered part of the renewable data center leaders - Apple and Google are the other two.
And others play catch up like Amazon.