As it turns out, algae -- slimy, fast-growing and full of fat -- is gaining ground as a potential renewable energy source.
Experts say it is intriguing for its ability to gobble up carbon dioxide, a greenhouse gas, while living happily in places that aren't needed for food crops.
Algae likes mosquito-infested swamps, for example, filthy pools, and even waste water. And while no one has found a way to mass produce cheap fuel from algae yet, the race is on.
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