6th International Hydrogen & Fuel Cell Expo Begins

TOKYO - MARCH 03: Iwatani's prototype bicycle, which runs on fuel cell, is displayed during the 6th International Hydrogen & Fuel Cell Expo at Tokyo Big Sight on March 3, 2010 in Tokyo, Japan. A full charged FC battery can assists the bicycle to run for about 45 km. Clean energy products is attracting more attention as Japanese government have set an ambitious target of 25 percent CO2 cut by 2020, compared to that of 1990 (Photo by Junko Kimura/Getty Images)