sustainable product index

So Wal-Mart has announced that it plans to implement a sustainable product index for every product it carries. I am by no means a fan of Wal-Mart, even if I practically live in the parking lot of one. And fine, their groceries are less expensive. But if they are serious about this product index and see it through, it might bring me around. Unless, of course, it proves that the products they carry are harmful to the environment.

I will be interested in following this plan, because if it works, it will be an influence to other major national retailers. And it would be nice for retailers to be honest with its customers on what impact their products have on the environment. It's certainly not easy now, 1. to find items that are earth-friendly, and 2. to discern them from the items jumping on the earth-friendly bandwagon.