a job for every one of its displaced workers. An independent study by Steven Horwitz of St. Lawrence University found that Walmart, The Home Depot, and Lowe's made use of their local knowledge about supply chains, infrastructure, decision makers and other resources to provide emergency supplies and reopen stores well before the Federal Emergency Management Agency (FEMA) began its response. While the company was overall lauded for its quick response amidst criticism of FEMA, several critics were quick to point out that there still remained issues with the company's labor relations. In 2006, Charles Fishman published The Wal-Mart Effect, examining the operation of Walmart's supply chain. His book caught the attention of the press and the public. Fishman's case studies illustrate Walmart's drive to lower costs and achieve greater efficiency and suggest that it may have significant upstream effects. Since FIshman's book was published, Walmart has more than doubled in size. Further research on Walmart's role in the food supply chain has tended to be limited and anecdotal. 2005–2010: Initiatives Environmental initiatives In November 2005, Walmart announced several environmental measures to increase energy efficiency and improve its overall environmental record, which had previously been lacking. The company's primary goals included spending $500 million a year to increase fuel efficiency in Walmart's truck fleet by 25 percent over three years and double it within ten; reduce greenhouse gas emissions by 20 percent in seven years; reduce energy use at stores by 30 percent; and cut solid waste from U.S. stores and Sam's Clubs by 25 percent in three years. CEO Lee Scott said that Walmart's goal was to be a "good steward of the environment" and ultimately use only renewable energy sources and produce zero waste. The company also designed three new experimental stores with wind turbines, photovoltaic solar panels, biofuel-capable boilers, water-cooled refrigerators, and xeriscape gardens. In this time, Walmart also became the biggest seller of organic milk and the biggest buyer of organic cotton in the world, while reducing packaging and energy costs. In 2007, the company worked with outside consultants to discover its total environmental impact and find areas for improvement. Walmart created its own electric company in Texas, Texas Retail Energy, planned to supply its stores with cheap power purchased at wholesale prices. Through this new venture, the company expected to save $15 million annually and also to lay the groundwork and infrastructure to sell electricity to