Turning polluted water into liquid gold
When most people stumble across a polluted pond, they would sigh over the fate of our beloved planet and maybe quote some Thoreau. Fortunately, there are some very crafty individuals out there who see a polluted pond and devise a way to both clean up the pond and create a renewable energy source. As part of our Power Trip we go visit an algae farm in Washington State where green goo in dirty water is being turned into biofuel.
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