In my energy course, I have students run some back-of-the-envelope calculations on corn v. solar to estimate out how much land would be needed to power a biofuel pick-up truck vs. an EV pick-up truck for a year. They arrive at a similar result…
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That's a great calculation that shows why biofuels should be used only where absolutely necessary, and should be made from agricultural waste, not primary crops. I first learned about Brazils biofuel from waste economy in chem eng in 1980s. We should be able to do more...
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