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  glycol57 at 10:51 PM JST - 2nd November

  Hydrogen is a poor fuel for vehicles. Storage, distribution and safety issues continue to plague the use of H2 for this purpose and, seemingly, will remain major issues for a long time to come.

  Hydrogen CAN be used - but as an INDUSTRIAL fuel much like natural gas instead of in moving vehicles. Industries have room for large outdoor tank farms. If the goal is to reduce CO2 emissions, it doesn't matter WHERE the savings are achieved - a power plant or a factory or on the road.

  Hybrids are the best choice for vehicles - fueled by diesel, gasoline or perhaps by methanol derived from coal or biomass. There already exists an infrastructure for liquid fuels so it's not necessary to re-invent the wheel, so to speak.

  "Indirect" hybrids like the upcoming Chevorlet "Volt" where the fuel motor is not attached to the drivetrain allow for a lightly-built perfectly-tuned motor unit that yeilds much better efficiency than an engine which has to work over a large speed/load range.

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