GM's Fuel-Cell Hedge

General Motors is investing in fuel cells, but major obstacles suggest that other alternative-energy technologies have a better chance of success

General Motors (GM) says it is determined to force fuel-cell vehicles past the chicken-or-the-egg stage, where they have been stuck for decades, with a goal of a small but commercially viable fuel-cell fleet by around 2015. Fuel cells run on hydrogen, producing electricity to run an electric motor. The only emission is pure water. But which comes first? Fuel-cell vehicles or the infrastructure to keep fuel-cell vehicles supplied with hydrogen fuel?

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