Skeptic
Joe Romm writes an obituary for hydrogen as a transportation fuel. An excerpt on its fatal illness:
Hydrogen fuel cell vehicles (HFCVs) require multiple technological (and other) miracles to succeed as practical, affordable, carbon-reducing consumer vehicles — and they require every plausible competitor, including electric vehicles, to fail first (see “Hydrogen fuel cell cars are a dead end from a technological, practical, and climate perspective” and “The car of the perpetual future” — The Economist agrees with Climate Progress on hydrogen).
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Running HFCVs on natural gas makes no sense at all since the full life-cycle GHG emissions (including methane leakage) are merely comparable to the best gasoline hybrids. Also, building an expensive hydrogen fueling infrastructure over the next two decades around a fossil fuel would vastly increase the total long-term cost since that infrastructure would have to be replaced in the two decades after that by carbon-free hydrogen fueling stations.