What can Brown do for you? For a start, UPS is making the world greener by using cleaner burning biodiesel at its most vital hub in Louisville, Ky.

"There is a finite amount of petroleum-based fuel available from our planet so it is important that UPS and other companies invest in ways to use alternative fuels and technologies, including biodiesel," said UPS Chief Sustainability officer Scott Wicker.

"This project helps us reduce our dependence on fossil fuels with the added benefit that it will reduce air pollution and carbon emissions."

UPS recently installed a biodiesel fuel tank and fueling station at its Worldport facility. It will allow fueling operators to blend specified percentages of biodiesel "on the fly," starting with 5 percent biodiesel (B5) and working up to 20 percent biodiesel (B20).

The 30,000-gallon biodiesel tank and station at Worldport fuels nearly 200 vehicles and diesel-fueled equipment. Since biodiesel blends of up to 20 percent can be used in any diesel engine without modifications, it is one of the easiest and most cost-effective ways to clean up heavy duty equipment.

Thanks in part to the American Soybean Association's policy success in gaining final passage of legislation that includes a retroactive extension of the biodiesel tax incentive, UPS and other biodiesel customers enjoy a one-dollar-per-gallon tax incentive that makes biodiesel more competitive with petroleum diesel fuel in the market place.