It's forceful enough to power rockets into space. It's also a remarkably clean fuel. The by-product of its combustion is water, and that water is so pure that the astronauts drink it. A drawback is that it takes energy to separate the hydrogen atoms from the oxygen atoms in water. Fortunately, however, the energy to do this is itself available in abundance.
Solar energy can do the job.
And the wastes are nicely sequestered. The sun's energy can be captured using current technology. Turner calculates that 10,000 square miles of photovoltaic cells would be enough to supply all this country's electrical needs. Wind energy could also be used to get hydrogen from water. Turner believes that if we used wind energy and solar energy to make hydrogen fuel, then our whole transportation system could be pollution-free.