Tuesday, Could 27, 2025 | 2 a.m.
Corn ethanol, also called grain alcohol, has been burned in gasoline engines and human stomachs since earlier than Henry Ford was born. It’s arduous on each, so till 35 years in the past it by no means caught on a lot, no less than not for engines.
However in 1990, Congress amended the Clear Air Act, requiring gasoline to be spiked with an oxygen-containing compound to scale back carbon monoxide. With the assistance of corn-belt farmers and public officers, the oxygenate of selection turned corn-based ethanol. Now, most gasoline offered in the US incorporates no less than 10% ethanol, additionally referred to as “gasohol.”
Fifty ethanol vegetation produced 900 million gallons of ethanol in 1990. In 2024, 191 ethanol vegetation produced a file 16.22 billion gallons. From the corn belt, ethanol manufacturing has unfold West. At the moment, ethanol is produced in Oregon, Idaho, Colorado, New Mexico, Wyoming, Arizona and California.
Although it’s hyped as an elixir for what ails the earth, ethanol has lengthy been a catastrophe that we will’t appear to treatment. Calling it wasteful and inefficient doesn’t start to record its drawbacks: It prices extra to supply than gasoline, reduces mileage, corrodes fuel tanks and automotive engines, pollutes air and water, and, by requiring extra vitality to supply than it yields, will increase America’s dependence on international oil.
Whereas gasohol releases much less carbon monoxide than gasoline, it emits extra smog-producing unstable natural compounds. And ethanol vegetation produce extra pollution than oil refineries, together with excessive ranges of carcinogens, thereby routinely violating already relaxed air pollution permits. In 2007, underneath business strain, ethanol vegetation had been exempted from the EPA’s most stringent air pollution laws.
Of all crops grown in the US, corn calls for essentially the most huge fixes of herbicides, pesticides and chemical fertilizers, whereas creating essentially the most soil erosion. Producing every gallon of ethanol additionally ends in 12 gallons of sewage-like effluent, a part of the poisonous, oxygen-swilling stew of nitrates, chemical poisons and filth that will get excreted from corn monocultures.
From Kentucky to Wyoming, this runoff pollutes the Mississippi River system, harming aquatic animals all the way in which to the Gulf of Mexico, the place it expands a bacteria-infested, algae-clogged, anaerobic “Lifeless Zone.” In 2024, this Lifeless Zone was in regards to the measurement of New Jersey.
Due to billions of {dollars} in tax credit, rebates, grants and different subsidies pumped into corn ethanol manufacturing, farmers are motivated to transform marginal ag land to corn plantations. Some farmers even drain wetlands, the most efficient of all wildlife habitats.
Cornell College professor David Pimentel, who died in 2019, was the primary agricultural scientist to reveal ethanol manufacturing as a boondoggle. Whereas his information are previous, they supply a snapshot of our present scenario and a beneficial mannequin for teams just like the Environmental Integrity Challenge, a nonprofit “holding polluters and authorities businesses accountable underneath the legislation,” because it digs out the actual prices of gasohol.
With out even factoring within the gas required to ship ethanol to mixing websites, Pimentel discovered that it takes about 70% extra vitality to supply ethanol than we get from it. Then, figuring in state and federal subsidies, he discovered that ethanol prices $2.24 a gallon to supply, in contrast with 63 cents for gasoline.
Pimentel decided that allocating corn to ethanol manufacturing additionally raises moral questions: “Abusing our treasured croplands to develop corn for an energy-inefficient course of that yields low-grade car gas quantities to unsustainable, sponsored meals burning.”
What stymies reform? Agricultural communities have constructed beneficial help from the underside up — from native agricultural communities and regional politicians to U.S. presidents reminiscent of Ronald Reagan, Barack Obama, Joe Biden and Donald Trump. The beneficiaries of America’s ethanol habit have develop into behemoths that get greater and hungrier with every feeding.
If Trump actually needs to chop wasteful and inefficient spending, lower our dependence on international oil and show that he needs America to have “among the many very cleanest air and cleanest water on the planet,” he wants to finish what now quantities to government-forced gasohol use.
Ted Williams is a contributor to Writers on the Vary, writersontherange.org, an unbiased nonprofit devoted to spurring full of life dialog in regards to the West. He’s a longtime environmental author.
