“Hydrogen fuel cell cars could help solve the global warming crisis, but nobody wants to buy them. Yoshikazu Tanaka, chief engineer of the Toyota Mirai, Toyota’s hydrogen fuel cell car, calls it a ‘chicken or the egg’ problem: no one wants to purchase hydrogen cars because there are no hydrogen fuel stations, and nobody wants to build hydrogen fuel stations because there are no hydrogen cars.

But Toyota thinks it may have found a solution. For unlimited clean energy, it’s turning to one of the dirtiest places there is: the toilet.”

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