Get Quote Symbol Lookup (04-25) 04:00 PDT Berlin -- Hydrogen, one of Earth's most abundant elements, once was seen as green energy's answer to the petroleum-driven car: easy to produce, available everywhere and nonpolluting when burned. Hydrogen energy was defeated by a mountain of obstacles - the fear of explosion by the highly flammable gas, the difficulty of carrying the fuel in large, heavy tanks in the vehicle and the lack of a refueling network. Automakers turned to biofuels, electricity...
Full Story: San Fransisco Chronicle
