Growing Hydrogen to Fuel a Clean Future
Hydrogen doesn't grow on trees, and, silly as it sounds, that's one of the biggest roadblocks to moving the world to a hydrogen economy.
A hydrogen economy, the solution favored by most scientists to the problems of dwindling petroleum resources and increasing pollution, would replace gasoline with hydrogen gas as the world's preferred portable energy source. Burning hydrogen produces only water - no pollution and no carbon dioxide, the prime culprit in the greenhouse effect.
The problem is that most hydrogen used today is reformed from natural gas. Not only does the process consume fossil fuels, but it also produces carbon dioxide as a byproduct, effectively negating much of the advantage of hydrogen.
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