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Jul 1, 2015, 5:14 pm143 pts
Grist
Is prickly pear cactus, also known as a witch magic hangover cure, the next cheap, drought-friendly biofuel? There are major issues with using food crops like corn and sugarcane for biofuels, including the fact they eat up farmland that could be otherwise used for growing food. But emerging research shows that…
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