Walmart today sent a letter to its suppliers detailing its new sustainability program. A copy of it can be found here. The program will reportedly impact the entire range of household and personal care products, including cosmetics and cleaners, which are sold in Walmart stores. In its letter to suppliers, Walmart is disclosing 10 chemicals that it is targeting for reduction or elimination. At this time, only suppliers are privy to the list of 10. But Sarah Vogel, director of environmental heal...