I know, I know. I’m treading on thin water with this one, what with all the haters and anti-sprawlsters out there. But strictly to make the point that businesses can use less and save money, I like this story. Next week, Wal-Mart will open the first store of the company’s next generation of green stores in Romeoville, Illinois. Where their first generation of two green stores saved about 20% energy, this store will save about 25% energy. The energy savings result from experimentations in refrigeration and heating/cooling systems in their first generation of green stores.