California’s Low Carbon Fuel Standard (LCFS) adopted by the California Air Resources Board (CARB) on April 23, 2009 requires a 10% reduction in the average greenhouse gas (GHG) emission intensity of the state’s transportation fuels by 2020. This regulation is expected to reduce lifecycle GHG...

Hydrogen is an especially attractive transportation fuel. It is the least polluting fuel available, and can be produced anywhere there is water and a clean source of electricity. A fuel cycle in which hydrogen is produced by solar-electrolysis of water, or by gasification of renewably grown...

This paper uses a lifecycle approach to analyze potential air quality impacts of hydrogen and gasoline use in light duty vehicles. The analysis is conducted for scenarios in 2005 and 2025 in Sacramento, California for CO, NOx, VOC, and PM10. Three natural gas-based hydrogen supply pathways are...