Comments on EPA Proposed Rule for 2019 Biomass Volumes

by Jerry Jung

My name is Jerry Jung.  I reside in Birmingham, Michigan.  Three years ago I started a webpage entitled “”  The webpage has a link to my resume’ outlining both my credentials and my motivation to comment on the proposed rule. 

I support the EPA’s decision to grant D6 RIN waivers to small refiners and also support applying D6 RIN credits for exported corn ethanol.  In light of the EPA’s acknowledgment of the environmental harm caused by the corn ethanol mandate, I also support lowering the 2019 Renewable Volume Obligation (RVO) for conventional biofuel.

In the last two years I have made twenty trips to Washington D.C. on the topic of ethanol mandates.  I have met with several dozen legislators, a score of trade and environmental associations, as well key administrative officials including former Administrator Pruitt. 

The rationale to pass the Renewable Fuel Standard included a smorgasbord of admirable objectives, none of which have materialized.  These goals included an inexpensive way to increase the octane ratings of gasoline; a way to reduce reliance on foreign oil imports; a way to invigorate the farm economy; an environmentally friendly manner in which to reduce harmful emissions; and a renewable approach to energy production that would conserve existing resources.  Some supporters of the RFS also pointed to food security issues.   Many ethanol advocates still utilize these arguments, but the ten year history of ramped up corn ethanol production leaves little room to doubt that the initiative has failed and hurts many more than it helps.  The following comments address each of these lofty goals and why they have not only failed, but have indeed worsened the very situations they were intended to ameliorate.

Background:  When ethanol is added to gasoline, its octane rating increases.  An increase in octane is not to be confused with an increase in power, as ethanol has less energy density than pure gasoline.  What ethanol does, like lead and MBTE before it, is to delay ignition with the result that engines operate at higher compression ratios.  This allows car manufacturers to utilize smaller engines.  Currently some car companies are lobbying for higher base octane ratings as a way to reduce costs, improve fuel efficiency and reduce emissions.

The results:  Prior to the passage of RFS and the subsequent rapid ramp up in RVOs, the price differential between grades of gasoline was 10-20 cents.  Typically, if 87 octane gasoline sold for $2.00, 89 octane gasoline would sell for $2.10 and premium grade 91 octane gasoline would sell for $2.20.  Today the spread between regular gasoline and premium gasoline has increased (here in Michigan) from 20 cents pre-RFS, to 90 cents today.  The potential cost savings associated with smaller high compression engines has been more than offset by the increased cost of high octane fuel.


Another unintended consequence facing car manufacturers is the public outcry that cars are not achieving EPA mileage ratings.  Exacerbating this situation is the fact that the U.S. is exporting higher octane pure gasolines with greater energy density to Europe because the EU has lower ethanol blend walls than in our country 2A.   Note that additives are not required to achieve higher octane ratings–both Shell and Mobile sell 91 octane pure gasolines with no ethanol added.   The export of higher quality gasoline further lowers the average energy density of U.S. blends with the result that fuel economy ratings are not achievable.

EPA fuel economy measurement procedures currently give an allowance to account for the lower energy content of ethanol.  This is a questionable practice that misleads the public.

The promise:  The mandated production of corn ethanol will reduce dependence on foreign oil.   

The reality:  Numerous studies indicate that it takes more fossil fuel to produce corn ethanol than it yields.  One Cornell study estimates that corn ethanol takes 40% more energy to produce than it yields, but most studies center on an input/output ratio of about one to one 3.   Even the U.S.D.A., an unabashed and misguided supporter of ethanol mandates, estimates energy output at only 10% more than the energy inputs 4.  The output increases if credit is given for the left over distillates fed to livestock, but studies indicate that this practice can sicken cattle and alter the taste and appearance of beef while shortening its shelf life 5.

Ethanol producers will tell you that it takes 28% as much energy to produce ethanol as it yields.  This is just the amount of fossil fuel consumed in the fermentation and distillation process.  It does not take into account the fuel consumed by agricultural tractors and trucks, as well as production of fertilizer and other agricultural inputs.

The net effect of corn ethanol mandates is that it dramatically increases domestic energy consumption.  If pure gasoline was consumed instead of the ethanol blends prevalent today, the energy consumed by motorists would decrease significantly because of all the fossil fuel required to produce ethanol. 

The goal:  Corn ethanol production will strengthen the domestic farm economy by expanding the market for corn and increasing its price.

The reality:  When RVOs were dramatically increased just over a decade ago, corn prices spiked near $7 per bushel 6.   Therefore, in the short term, the promise of a better farm economy held true.  However, the beneficial economic effect for farmers was short lived.  A basic tenet of economics states that supply will increase as prices increase.  The production of 15 billion gallons of ethanol requires 40% of the total corn crop and 35 million acres of prime U.S. farmland—an area larger than most states 7.   About 8 million acres of this total has been identified by the National Wildlife Foundation (NWF) as conversion from Conservation Reserve Program (CRP) acreage and from native prairie or forest.  The remaining 27 million acres has been diverted from growing food crops such as corn, soybeans or pasture.  Other countries have taken up this slack.  Whereas the U.S. has historically been the world leader in agricultural exports, Brazil now surpasses the U.S. in soybean exports and Russia surpasses us in terms of wheat exports 8.   Our ethanol policies have bolstered foreign competition for foodstuffs while weakening trade ties and expanding the national trade deficit.  Predictably, prices for corn have dropped to the same levels seen before the RFS 9  .

A March 2017 study by the Conservative Political Action Committee confirms that the farm economy has weakened during the past decade.  It is no wonder.  Ethanol is a low-value commodity.  A bushel of corn will produce 2.8 gallons of ethanol worth about $4.50 10.   The same corn, fed to poultry produces about $20 of value, and to cattle or pork, about $50 worth of value 11 .   It is this value added chain that creates rural employment and economic diversity.  A couple of years ago, I sold some acreage near Coldwater Michigan to a pork processing facility owned by Clemens Food Group.  They currently employ about one thousand workers processing 10,000 hogs per day.  Compare this to a 70 million gallon annual capacity ethanol plant that employs about 30 people while utilizing twice as many bushels of corn as was fed to the processed hogs.

A recent motorcycle tour through Iowa confirmed the downsides to rural communities of what is essentially the industrialization of agriculture.  Very little long grass prairie is left in that state—about 3% of the original total 12.   While riding through the state, I noticed a large hand painted sign that read, “Family farms, not factory farms.”  One wonders whether this sentiment is related to the diminished sense of community and increasing levels of outside control exerted over their lives.   Farm profits have not increased in 15 years 13.   Outdoor recreational opportunities for farm families such as camping, hunting and fishing have been sharply curtailed as natural areas have been converted to farming.  Drinking water supplies have been contaminated by neo-nics and high nitrate concentrations 14.   The City of Des Moines, actually sued upstream agricultural districts in an effort to recoup increased treatment costs 15.

A typical acre of farmland might produce $50 of profits for the farmer.  That same acre typically requires about $300 of inputs such as seeds, fertilizer and pesticides 16.  Whereas crop prices are subject to worldwide competitive pressures, agricultural inputs are controlled by cartels and oligopolies who are the only winners under the RFS 17.   Farmers are being squeezed between worldwide commodity markets and locally controlled input prices–prices that can be lower in competing countries.

A popular political misconception is that the majority of Iowans support ethanol mandates.  Many times I have heard the comment, “We wouldn’t have this stupid policy if Iowa was not the first state to hold primaries.”  That may not be the case.  Two separate polls, one sponsored by a conservation organization and one by a political candidate found the majority of Iowans are opposed to ethanol mandates.  Recall that Senator Cruz, the one candidate that consistently opposed ethanol mandates, won the Republican Presidential primary in Iowa.   It is likely that the uncompromising support for ethanol mandates espoused by many politicians from Iowa is driven by some factor other than popular sentiment.

The sales pitch:  Ethanol is good for the environment. 

The outcome:  As mentioned previously, mandated ethanol production requires 35 million acres of prime farmland.  Because of the world-wide nature of agricultural commodity markets, much of this acreage is overseas, especially in the tropics of South America.  Few would argue that cutting down rainforests is good for the environment.  These forests have been called “the lungs of the earth” and contain astounding biodiversity 18.   Conservatively, 20 million acres of rainforest, most of it in Brazil, has been converted to cropland due in part to U.S. ethanol mandates 19.   If each of these acres contained 500 tons of carbon sequestered in the form of biomass, then 10 billion tons of carbon (20,000,000 acres times 500 tons per acre) have been logged, cleared or burned and later the acreage planted into food crops once grown in the U.S. before the widespread conversion of food crops to fuel crops 20.   To put this in perspective, the U.S. consumes about 1 billion tons of coal per year 21.

The reduction of habitat has had a profound effect on biodiversity.  Of special concern are agricultural practices such as round-up ready corn that reduce weeds that many insects and birds depend upon.  Of even greater concern is the prevalence of Bt corn that produces bio-toxins that kill pests such as corn earworm but also indiscriminately kill all moth and butterfly caterpillars 22.   Corn, is a wind pollinated plant 23.   I am sponsoring independent research to determine the extent to which the wind carries corn pollen and to study the concentrations of bio-toxic pollen that land on insect food sources at various distances from corn fields.  Monarch butterflies migrate from Mexico over the Corn Belt.  Their populations have plummeted 90% to 95% in recent years 24. Dramatically increased corn production and widespread use of Bt corn (estimated at 80% of the total) 25 have delivered a “one-two punch” to insect bio-diversity.  A German study recently yanked from the internet, pointed to an 80% reduction in insect biomass.  Whereas in the 1950’s and 1960’s DDT threatened the survival of apex predators such as the bald eagle, huge swaths of toxic corn now threaten insects at the base of the food chain.  The majority of birds eat insects as at least part of their diet 26 not to mention amphibians, bats and reptiles 27.   This currently unfolding “Insect Armageddon” has the potential to impact the environment in a manner detrimental to humanity.  How it will ripple through the ecosystem is anybody’s’ guess.

Air quality is also an environmental concern with ethanol in gasoline.  As the ethanol blend wall increases, so do automotive exhaust emissions of NOx that synthesizes the creation of ozone—a serious health concern 28. Recognizing this years ago, Senator Feinstein introduced legislation aimed at limiting ethanol use in the nation’s fuel supply 29.

Polling suggests that the biggest concern related to excessive agricultural production is water quality 20.  The Des Moines lawsuit points to the potential impact on drinking water.  A recent University of Michigan study finds that 85% of nutrient overload in the western basin of Lake Erie is due to agricultural run-off 31.   A few years ago, the City of Toledo was forced to shut down its water supply due to toxic algae in Lake Erie 32.   Both Michigan and Ohio have strong agricultural components to their economies, yet the Governors from both states have declared the western basin of Lake Erie as impaired 33.   During the peak months of August and September, green sludge covers many square miles of the Lake’s surface.   With warm temperatures and abundant rainfall washing fertilizers from farms this year, surface algae have returned earlier than normal 34.   I have experienced this toxic sludge first hand while trying to fish.   Scientists have called for a 40% reduction in phosphorus in Lake Erie 35.   Ironically, this is the same percentage of the corn crop dedicated to ethanol.  Millions of people rely on the Great Lakes for drinking water and recreation.

It is also worth noting that the Flint River water source that precipitated the drinking water.  Agricultural pollution is not limited to inland rivers and lakes.  Near the mouth of the Mississippi River an area the size of New Jersey will not support marine life due to depleted oxygen levels 37.

Note that the extra production of fertilizer, herbicides and pesticides associated with increased corn production creates pollution not only when it is applied, but also when it is manufactured.  Here in Michigan the DNR advises against eating game shot in the Tittabawasse rivershed,38 home of a large DOW chemical plant that produces agricultural products.

The recent EPA report that ties environmental degradation to ethanol mandates is welcome news and is beyond reasonable dispute. 

RFS selling point:  Corn ethanol is sustainable and is a renewable source of energy that strengthens domestic energy independence.

Facts:  Corn production as it is currently practiced is not sustainable in terms of water resources, soil health and phosphorus supplies.  And how can a practice that does not reduce the use of fossil fuels and effectively doubles energy consumption provide energy independence?

Let’s start with the consequences of irrigating non-food crops.  Of particular concern is the Ogallala Aquifer that underlays much of what used to be prime rangeland, but now is increasing given over to corn production.  This reservoir of clean water is being depleted at an alarming rate and according to a National Geographic article will take thousands of years to replenish 39.  With increasingly polluted rivers in the western part of the Corn Belt, it is unwise to subsidize the extraction of water upon which future generations will rely.

Years of intensive agriculture have reduced many farm soils to little more than mineral substrates that are infertile without fertilizers 40.  The production of these fertilizers requires extensive amounts of fossil fuels that are by definition not renewable.

Phosphorous, one of the three principal components of fertilizer, is in short supply.  The U.S. Geological Survey estimates that only 25 years’ worth of reserves of phosphate rock is left in this country 41.

Pitch:  The RFS will increase food security.

Results:  A bushel of corn can produce 2.8 gallons of ethanol 42.  The proposed EPA mandate for conventional biofuel is 15 billion gallons in 2019.  If history is any indication, about 98% of this total is will be from corn.  Therefore, well over 5 billion bushels of corn will be reserved for fuel before the remainder is made available to feed livestock and for other uses 43. If we assume that the U.S. produces 15 billion bushels of corn a year, then the FIRST third of production is reserved for fuel and the SURPLUS for food.  This is outrageous logic that serves to exacerbate supply and price swings for food.  For instance, a 20% decline in total corn production, translates into a 30% decline in corn available for food.  The food industry is many times the size of the ethanol industry.  Drought impacted the corn crop in 2012 and prices rocketed up to over $7 per bushel 44.  Although the EPA had the authority to reduce the RVO predicated on short supplies, they did not.  Does it make sense to affect millions of workers in the food industry; to slaughter poultry, hogs and cattle prematurely; and to drive up the price of food–a most basic human necessity, to protect the relatively tiny ethanol industry?  This policy has resulted in food riots in poor countries as they exported corn to the United States instead of feeding it to their people 45.

Conclusion:  The EPA should be applauded for taking steps to reduce Renewable Identification Number trading prices.  RINs are in essence subsidies to ethanol producers funded by a covert tax on refiners, much of which is passed along to motorists.  In addition to utilizing refinery waivers and applying RIN credits to exported ethanol, the EPA should also directly address the RVO for corn ethanol.  It is my understanding that the EPA has the authority to do so given documented environmental harm.

In addition, the EPA should provide non-politically motivated scientific advice to legislators currently attempting to draft legislation addressing the RFS as well as the related issues of octane ratings and CAFE standards.  This scientific advice should be grounded in common sense and take into account the total environmental picture, not just tail pipe emissions or fuel economy.  Perhaps scientific research will reveal that naturally aspirated engines that do not require high octane gasoline and perform better actually have a lower impact on the environment than high compression turbo charged engines that require oxygenated gasoline.  The sentiment that is common in Washington D.C. is that any change to the RFS must be acceptable to all parties.  This issue is too important to be subject to special interest politics.

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