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Biofuels
 
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121 I'm Powered by Sugar, Why Can't My Gadgets Be? Hank Green 19601
122 Tyson Foods and Conoco Team Up to Make Pig-Diesel Hank Green 15744
123 Potato Plastic 40341
124 Our First Cellulosic Ethanol Plant!!! Hank Green 90103
125 Nano-Scale BioDiesel Refinery : Cleaner Cheaper and Faster Hank Green 19895
126 McDonald's Grease Powering McDonald's Trucks Hank Green 56575
127 Photovoltaics 100X More Efficient than Biofuel Hank Green 17688
128 Carbon Negative Biofuels?! Philip Proefrock 17862
 
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