UPS on Thursday announced it was deploying three delivery vans that run on non-polluting hydrogen and fuel cells, and said it hopes to some day have zero-emission engines for its entire fleet of 88,000 vehicles. The three vans will be used in Los Angeles, Sacramento, Calif., and Ann Arbor, Mich. [ more ] Once again, these Fuel Cell trucks are made by DaimlerChrysler AG (DCX) and are using Ballard Power (BLDP) for the cell stack.