Wal-Mart's Eco-Index : discussing Wal-Mart's green initiative. You may be tempted to think of this exclusively in terms of "going green." That's not why I want you to read this. I want you instead to read it and consider the awesome job Wal-Mart did in coordinating its efforts around the time of Hurricane Katrina (and Rita and Ike). Wal-Mart did all of that without government interference. While the writing may be on the wall, in this case Wal-Mart is moving of its own volition. How much you want to wager they'll do a far better job on their own than other companies who wait until the federal government takes control of the effort?