Hydrogen-fueled cars have become increasingly popular in California, though they still account for a tiny fraction compared to the number running on gasoline. Getting those vehicles to move beyond the state’s borders may require 18-wheelers crisscrossing America’s highways leading the way.
Research at the National Renewable Energy Laboratory (NREL) suggests a shift in long-haul trucking toward hydrogen, which would necessitate a coast-to-coast network of fueling stations.
Before that can happen, however, scientists must answer certain questions.
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