WASHINGTON - Widespread use of the hydrogen fuel cells that President Bush (news - web sites) has made a centerpiece of his energy plan might not be as environmentally friendly as many believe. Scientists say the new technology could lead to greater destruction of the ozone layer that protects Earth from cancer-causing ultraviolet rays.
Researchers said in a report Thursday saying that if hydrogen replaced fossil fuels to run everything from cars to power plants, large amounts of hydrogen would drift into the stratosphere as a result of leakage and indirectly cause increased depletion of the ozone.
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