- When corn farmers harvest their crop, they often leave the stalks, leaves and spent cobs to rot in the fields. Now, engineers have fashioned a new strain of yeast that can convert this inedible debris into ethanol, a biofuel. The process could tap underused sources of renewable fuels. https://www.sciencenews.org/article/genetically-modified-yeast-ethanol-cornstalk-biofuel 82 comments science
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