SustainLane surveyed the largest 50 US cities in 2006 as to the percentage of their city vehicles fleets using alternative fuels including biodiesel, hydrogen, ethanol, compressed and natural gas, as well as electric vehicles, gas-hybrid vehicles.
"Las Vegas led the nation with almost 63 percent of its vehicles using alternative fuels, including 450 vehicles using cleaner-burning B20 biodiesel (20%), in addition to using less-polluting compressed natural gas, electric hybrids and zero-polluting hydrogen vehicles.
Other cities ranking high in alternative fuel use included Honolulu; Kansas City, MO; Albuquerque; and Dallas. Denver, which ranked sixth in alternative fuel use with 31 percent of its fleet in that category, announced plans in 2006 to convert 100 percent of its city fleet to alternative fuel by the end of 2007. Albuquerque has set a similar goal of a 100 percent alternative-fueled city fleet."
Thanks to Abendigo Reebs