interesting piece on a whole foods carbon credits purchase scheme that I hadn't heard about:
here "...The controversy in a nutshell: Whole Foods recently began test-marketing “wind power cards,” which are basically renewable energy credits (RECs) in the form of a handy little plastic card available near the checkout line. The RECs themselves are provided by Renewable Choice Energy (RCE), a broker responsible for some other high-profile green power programs, including a partnership with the Vail ski resort.
The Whole Foods program caught the notice of blogger Steve Johnson, who roundly denounced it as a scam. His denouncement was then picked up and amplified a millionfold by Boing Boing, the most popular blog in the galaxy. From there, the debate ping-ponged back and forth across the internet, with all manner of green blogs weighing in on RECs in general and on the question in particular of whether selling RECs that look like stored-value cards is a deceptive marketing practice...."