Greenwashing refers to the recent practice of providing misleading marketing claims about the environmental benefits of something. Many times, it seems, claims about the ecobenefits of a product are vague, or even out and out false. How do you know? Time has an article on the identification of Greenwashing, and even lists a couple of websites where you can go for more info. Those websites are: Greenwashingindex.com, and Terrachoice.