Clear Water Pool Service (CWPS) provides the maintenance for over 7,000 pools in southwest Florida. In 2010, CWPS purchased vehicle routing and scheduling software and a GPS truck locator system. Before the use of the "smart system", CWPS's vans and trucks drove 1.26 million miles to service these pools on monthly and weekly appointment schedules. After one year of using the "smart system", CWPS reduced total miles driven to 1.03 million miles and, as a result, saved 11,000 gallons of gasoline annually. Lately, CWPS replaced a fleet of pool service vans with hybrid/electric- and gasoline-driven systems. This reduced the number of gallons of gasoline used to 7,500 gallons per year. Unleaded gasoline has 8.91 kilograms (19.643 lb) of carbon dioxide