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During a three-hour presentation at a Tokyo hall Tuesday, the car manufacturer giant announced it would offer lean compact engines that also run on so-called green fuels like hydrogen and bioethanol, or get paired with zero-emissions electric motors in hybrids.

To promote efficient bioethanol production, scientists have been searching for substances that can help yeasts better withstand ethanol, but few effective ones have been found.

"About 50 cents per gallon of bioethanol production costs is dedicated just to enzymes, so minimizing this cost would do a lot in terms of making bioethanol from plant waste more competitive with fossil fuels or corn-based ethanol," Anderson said.

Modern hybrid sugarcane is one of the most harvested crops on the planet, used to make products including sugar, molasses, bioethanol, and bio-based materials.

All you have to do is pour roughly five ounces of 70% or 91% isopropyl alcohol — don’t use bioethanol or any gelled fuels — inside of it.