Greening the Data Center is not easy. Contrary to what many think a green data center is not simply a low PUE, a certification like LEED, and other ways to say "look at me I have a Green Data Center."
A Green Data Center is not a binary thing of do this, and now you are green. Drive a Prius used to be thought of being a Green thing. Driving a Hybrid isn't a big deal any more.
What should you do? Think about changing your habits? Bad habits can accumulate a lot of waste.
Charles Duhigg has a new book on "The Power of Habit"