According to Tyson's 2012 Sustainability Report, the company reduced total water use by 4.7 percent during 2011–2012, but normalized water use increased 1 percent over the same period. Through conservation efforts and closures, the company reduced water use by 10.9 percent between October 2004 and 2012. During 2010–2012, Tyson Foods reduced wastewater related permit exceedances by 48 percent and notices of violations by 86 percent. Tyson reduced greenhouse gas emissions by approximately 8 percent during 2010–2011, and the company cut 145 million truck miles via lightweight equipment purchases, packaging improvements, and use of rail transport.