Is evaporating water the future of renewable energy?

It just might be ...

Evaporation.
(Image credit: iStock)

Forget the sun and wind — evaporating water could be the next big source of renewable energy, said James Temple at Technology Review​. So-called evaporation-driven engines "generate power from the motion of bacterial spores that expand and contract as they absorb and release air moisture." Evaporation continues 24/7, so the engines, which sit on the water's surface, could provide power nonstop — unlike solar panels.

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