Posts Tagged ‘biofuel’
I have discussed biofuels, and especially bioethanol from corn, in quite a few posts so far. Some of the discussion has centered on promising (old and new) approaches to biofuels, which I believe include:
- Biodiesel from waste (fish oil, cooking oil and other sources)
- Ethanol (bioethanol) from agricultural waste (specifically not from food products)
- Metabolic engineering of bacteria to aid biodiesel production
- Chemistry and engineering of new catalysts for biodiesel production (which probably have to be tailored to each different source of raw material)
With the exception of biodeisel from waste cooking oil and very similar sources, these processes are typically still at the research stage and are not being practiced on a large scale.
Much of the discussion here has covered the problems I and others see with current biofuels practices, which include:
- The terrible impact on the environment of dramatically inefficient processes such as corn to ethanol (corn ethanol)
- The conclusion by many scientists, myself included, that sound scientific shows a net loss of energy by using corn to make ethanol
- The environmental impact of corn ethanol or even some “biodiesel farms” is both direct and indirect
- Clear cutting of rain forests is being driven by biofuel farming
- Fertilizer alone from corn ethanol production damages fresh water and salt water, not to mention other agricultural chemicals
- The problems with air quality associated with ethanol as fuel (mostly ozone and formaldehyde generation and increased photochemical smog, all of which lead to respiratory ailments)
- My belief that research and development can solve problems with air quality from ethanol fuels
- My prediction that catalytic converters for ethanol-based cars will be cheaper than current models because ethanol fuels can greatly reduce or eliminate nitrogen- and sulfur-containing impurities found in crude oil and gasoline/petrol (depending on whether one uses ethanol or ethanol/gas-petrol mixtures such as E85)
- The problem that people are taking political and dogmatic stances on alternative fuels instead of examining each issue critically and on its own merits
Then of course, we have the problem that not enough people are talking about and doing something about energy conservation:
Ignoring conservation is particularly a problem in the US and developing countries- Europe is taking conservation seriously and always has in some ways, such as a the huge investment in public transportation
Now a U.N. spokesman has stated that current biofuel practices are creating hunger and starvation problems amongst the world’s poor (though future biofuel generation methods are predicted not to cause such problems):
As reported by EDITH M. LEDERER, an Associated Press Writer,
“A U.N. expert on Friday called the growing practice of converting food crops into biofuel
“a crime against humanity,”
saying it is creating food shortages and price jumps that cause millions of poor people to go hungry. “
The statement by Jean Ziegler called for a stop to the current practice of using food crops to make ethanol, saying that it is leading to hunger of catastrophic proportions among poor people.
Mr. Ziegler did not call for an end to biofuels as a source of fuel. Instead, he proposed a 5 year break in biofuel production to give new technologies that don’t threaten the food economy time to make an impact on the marketplace. These technologies include
- nonfood crops and cellulose-based sources of biofuels
- crops that require far fewer resources than corn
- agricultural waste as a source of ethanol
- new methods of biodiesel production
Careful to point out that current biofuel practices grew out of good intentions, Ziegler still made it clear that the conversion of huge amounts of food crops into ethanol will lead to serious food shortages in many areas.
As reported by Lederer,
“The world price of wheat doubled in one year and the price of corn quadrupled, leaving poor countries, especially in Africa, unable to pay for the imported food needed to feed their people, he said. And poor people in those countries are unable to pay the soaring prices for the food that does come in, (Ziegler) added.”
Read the full article for more details. Thanks to John B. for pointing out the article to me.
© James K. Bashkin, 2007
Technorati Tags:biodiesel, agricultural waste for energy, food economy, gas, biofuels, environment, starvation, energy economy, moratorium on biofuel, united nations, wheat, corn, associated press, oil prices, greenhouse gas
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It was reported by Timothy Gardner of Reuters that Jane Goodall, one of the world’s best-known scientists, has come out strongly against the planting of biofuel crops in tropical areas because this is typically accompanied by extensive destruction of rain forests.
So, whether it is “corn-to-ethanol” raising your food prices or fast-growing weeds for generation of fuel, one must question the true benefits of “bioenergy” or biofuels in many cases.
The situation is different in the case of waste oils being converted into biodiesel: waste is being put to good use here. Treating food and rain forests like waste is another matter, one that we can expect to be harmful to the planet in many ways. I’ll be discussing this at length over the next few weeks.
This quote from Jane Goodall, as reported in the Reuters article, sums things up perfectly: “Biofuel isn’t the answer to everything; it depends where it comes from.”
© James K. Bashkin, 2007