Fads come fast and furious in our viral age, and the reactions to them can be equally ferocious. That’s what we’re seeing right now with biofuels, which everyone loved until everyone decided they were the worst thing since the Black Death. Where fuel distilled from plant matter was once hailed as an answer to everything from global warming to the geo-strategic power shift favoring repressive one-pipeline oil states, its now a “scam” and “part of the problem,” according to Time magazine. Ethanol has turned awful. The supposed crimes of biofuels are manifold. They’re behind soaring global commodity prices, the destruction...