Business' motivation to go green is, shockingly, economic
http://www.ft.com/cms/s/0/4d84bd34-6a92-11de-ad04-00144feabdc0.html
As it should be. I'm not sure why it's so important to greenies that it all be about altruistic environmental motivation. Businesses act out of economic interest. And this, which is all about cost savings only scratches the surface.