Wal-Mart is starting a campaign to be more eco-friendly. This could be considered green-washing, but it comes from a greater understanding of a new reality: Global warming is bad for business. And companies can save money by being green. So hate them or not (just don’t love them), but they are market leaders and this could represent a turning tide in sustainable business.

Check out this excellent column on the greening of Wal-Mart from the San Francisco Gate. Just remember, Wal-Mart will always be the devil: “[Wal-Marts] are the George Bushes of the retail world - drunk with power, cheaply made and full of crap.”