In this huge convention center with acres of indoor space, green vehicles such as hybrids and compressed hydrogen-fueled cars were displayed. People have great things to say about ethanol as a fuel additive and as an alternative. However, I recently came across an article that says that ethanol is not as good as we think.
Ethanol promoter Ethanol.org says:
Ethanol is a high octane, clean burning, American-made renewable fuel. Its production and use offer a myriad of benefits to the United States and its citizens.FlyRod and Reel* says that ethanol does more harm than good
The production of ethanol is an economic engine for the United States, adding value to U.S. agricultural products and bringing billions of dollars to the nation's economy each year. The use of ethanol reduces harmful auto emissions, offers consumers a cost-effective choice at the pump, and decreases the amount of expensive crude oil needed to satisfy the nation's thirst for transportation fuel.
It all started in 1990 with amendments to the Clean Air Act, revolutionary in that they regulated not just how we burn gasoline but how we make it. In areas out of compliance with air-pollution standards, gasoline had to include at least two percent oxygen-containing chemicals (oxygenates), the better to combust carbon monoxide, toxic hydrocarbons, and smog-producing volatile organic compounds. There were only two choices--ethanol and the petroleum-based methyl tertiary butyl ether (MTBE). This was precisely what the cornbelt had fantasized about and lobbied for. Suddenly the moribund ethanol industry had a future. City air would become breathable. We'd have plenty of fuel. It was going to be a win-win-win.
But instead of cleaning up America, ethanol has added to the mess we're making out of our water and air. Now the Bush Administration has decreed that ethanol replace the far more efficient MTBE as an oxygenate. But with current refining technologies and anti-pollution paraphernalia on motor vehicles there's no need for any oxygenate, a fact the powerful agribusiness lobby doesn't want you to know. Under its withering pressure, Congress and the executive branch have committed the nation to ethanol as both oxygenate and fuel.
The Energy Policy Act of 2005 requires that US gasoline contain 7.5 billion gallons of ethanol by 2012, up from 4 billion. One hundred and one ethanol plants are online, and 44 are under construction. Eighty million US acres were planted to corn in 2006; and the ethanol boom will require 10 million more just in 2007. Ethanol, we are being told, is going to "reduce our dependence on foreign oil" and "lead us to energy independence." "Live Green, Go Yellow," effuses General Motors, one of the major roadblocks to fuel-efficiency standards. "Fill Up, Feel Good," gushes the Ethanol Promotion and Information Council, a front for agribusiness.
How will ethanol affect your fishing, apart from possibly ruining your outboard motor? (Ethanol does this in lots of ways. Just ask David Blinken, the famous Montauk fly-fishing guide, who recen-tly spent $25,000 pulling his deck, replacing his fuel lines and tank, extracting aluminum-oxide gum from his carburetors and basically rebuilding his twin 100-horse Yamahas.) First, no crop grown in the United States consumes and pollutes more water than corn. No method of agriculture uses more insecticides, more herbicides, more nitrogen fertilizer. Needed for the production of one gallon of ethanol are 1,700 gallons of water, mostly in the form of irrigation taken from streams either directly or by snatching the water table out from underneath them. And each gallon of ethanol produces 12 gallons of sewage-like effluent.
Ethanol plants are gross polluters of air and water, and because of the exorbitant price of natural gas some of the new ones will be coal-fired, adding to the already dangerous mercury content of fish. The response of the Bush administration has been a proposal to relax pollution standards for ethanol production. Under the conservation programs of the 1985 Farm Bill and its successors, some farmers are bootstrapping their way toward sustainable agriculture, but corn production still erodes topsoil about 10 times faster than it can accrete.
The toxic, oxygen-swilling stew of nitrates, chemical poisons and dirt excreted from the corn monocultures of our Midwest pollutes the Mississippi River and its tributaries, limiting fish all the way to the Gulf where it creates a bacteria-infested, algae-clogged, anaerobic "Dead Zone" lethal to fish, crustaceans, mollusks and virtually all gill breathers. In some years, depending on seasonal heat and water conditions, the Dead Zone can cover 8,000 square miles. And it's expanding.
No habitat is more important to fish and wildlife than wetlands. They filter out pesticides and sediments, and they consume phosphates and nitrates. At least 70 percent of the wetlands in the cornbelt have already been lost. But, in order to produce surplus corn for ethanol, remaining cornbelt wetlands are being drained. In some areas--Nebraska, for instance--corn has to be irrigated by pumps that suck water from the ground faster than it percolates back in. Both pumps and the ethanol plants themselves are powered by natural gas, the frenzied production of which is creating horrendous problems for fish and wildlife in the West.
Pimentel reports that ethanol, which yields only two-thirds the energy of gasoline, gets 45 times more federal subsidy per gallon than gasoline. "That's what's attracting all the flies," he says. All told, you and I are spending at least $3 per gallon on ethanol subsidies for a total of $6 billion per year. Without all this gravy train, Pimentel has calculated that the cost for 1.33 gallons of ethanol (the equivalent in energy yield to a gallon of gasoline) would be $7.12.
* I don't read this magazine. I don't even know of its existence until I came across this article. My colleague Dean, a professional bass fisherman, forwarded me this link.We do, however, possess the technology to build fuel-efficient automobiles. In the current charade designed by and for agribusiness we're allocating 18 percent of the corn we grow to ethanol, thereby cutting our petroleum consumption by one percent. But Patzek has calculated that if we doubled automobile fuel efficiency, we'd cut petroleum consumption by 33 percent or, put another way, we'd increase our petroleum supply by a third. It's a revolutionary concept that America has never tried. Fish-and-wildlife advocates are calling it conservation.
1 comment:
Thanks a lot, Gopa. Loved this debate.
Am really impressed about the amount of detail folks in the US go into, instead of an airy-fairy rebuttal. This is one thing folks in India can really learn. Talk facts instead of fantasy!
The US needs a George Washington Carver right now.
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