Turning Soybeans Into Diesel Fuel Is Costing Us Billions

Read the full story from NPR.

This year, trucks and other heavy-duty motors in America will burn some 3 billion gallons of diesel fuel that’s made primarily from vegetable oil. They’re doing it, though, not because it’s cheaper or better, but because they’re required to, by law.

The law is the Renewable Fuel Standard, or RFS. For some, especially Midwestern farmers, it’s the key to creating clean energy from American soil and sun. For others — like many economists — it’s a wasteful misuse of resources.

And the most wasteful part of the RFS, according to some, is biodiesel. It’s different from ethanol, a fuel that’s made from corn and mixed into gasoline, also as required by the RFS. In fact, gasoline companies probably would use ethanol even if there were no law requiring it, because ethanol is a useful fuel additive — at least up to a point. That’s not true of biodiesel.

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