Urine-Powered Cars: The Pros and ConsUsing hydrogen to power cars has become an increasingly attractive transportation fuel, as the only emission produced is water - but a major stumbling block is the lack of a cheap, renewable source of the fuel. Gerardine Botte of Ohio University may now have found the answer, using an electrolytic approach to produce hydrogen from urine—the most abundant waste on Earth—at a fraction of the cost of producing hydrogen from water.
This is one way for Amazon drivers to avoid having to piss in bottles.