Bioenergy from the Scum of the Earth

One of the simplest plants on Earth could help us out of a few complex problems. Algae may not only help us mitigate climate change, they could also become one of the few truly sustainable biofuel crops.

The unsightly, suffocating green sludge we call pond scum is an unlikely savior for the planet.Yet algae underpin all life on Earth. They use the sun

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