In November 2005, Walmart announced several environmental measures to increase energy efficiency and improve its overall environmental record, which had previously been lacking.[49] 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.