Of course, for many reasons, we need to find an alternative to petroleum-based motor fuels, and as soon as possible (if not 30 years ago). And, it appears as if the United States is looking towards ethanol to be the official answer to the gasoline replacement question. My main concerns with using ethanol are that it will continue the BILLIONS of dollars in corn subsidies paid by the government (especially to the VERY large commercial farmers), and that protected and/or at-risk lands might be planted in corn in order to cash in even further on the production of corn (including more forests – and especially our national parks -- will be stripped to use the wood for ethanol production). Of course, both resources (corn and trees) are renewable resources, but you know that the large corporate farmers and the lumber companies (et al.) will eventually get greedy with our natural resources (much like the oil companies do now) and the American public will suffer for it. Plus, larger amounts of genetically-modified (GM) corn and etc. will be grown, and bioengineered yeast strains, which is bad for everyone and everything but the biotech companies. Right now, my only ‘pro’ regarding corn-based ethanol production is that the byproduct (the mash) can be used as a very efficient protein feed for livestock production or even human consumption (although ex- Chairman of the Board of Governors of the Federal Reserve Alan Greenspan feels that animals will go hungry once ethanol production increases!).
It is interesting to see President Bush visiting Brazil to talk about ethanol production; I’d like to see what comes of it. I understand Brazil is focusing on sugar cane-based ethanol (as is Cuba and a few other countries), but I also understand that virgin rainforests may suffer (much like our national parks may suffer) once land for sugar cane production becomes too valuable to let just “lie around” and be unproductive commercially. Anyway, President Bush seems to be focusing on corn stalks, wood chips from fast-growing trees, and switchgrass for the biomass needed for ethanol production; perhaps he feels that using the ears of corn or other edible biomass will result in people drinking the finished product?
Marty Bender, a scientist at the
Land Institute in Kansas, conducted studies in the 1990s that documented that an alternative fuel source such as ethanol (as a large-scale and/or total replacement for gasoline) would be ecologically inefficient and agriculturally destructive in the long run because it may cause the cultivation of every possible acre of ground (including erosive lands that have the potential to stabilize our watersheds, for instance) in order to produce the biomass needed for the tremendous supply that would be required. Plus, it would most likely decrease the food supply (perhaps greatly) nationwide and worldwide if land is considered more valuable to use for the production of fuel biomass than for edible grains.
Of course, I don’t know the answer to what the most effective (in every way) “alternative” fuel is. Perhaps using methane or another form of composting gas (i.e. as a byproduct of composting) will work; maybe algae; perhaps hydrogen would be the most efficient; perhaps biodiesel is the key; maybe fuel cells; heck, possibly solar or thermal heat will work. I’m just not sure. It’d be nice to be able to use something that’s already serving or served its main purpose (in a byproduct or recycling-kinda way), such as landfill gas or sludge, or livestock manure, or urban sewage (perhaps biosolids, even with their heavy metals), or normally unrecyclable plastics or waxed cardboard. Again, I’m just not sure what the answer is. I do think that with so many vehicles on the road that utilize gasoline, something that those vehicles can use directly or be adapted to use would be most practical, at least in the short term (with the “short term” being perhaps 20 years or so). For instance, on my salary, I’m not going to buy a brand-new 2010 year-model truck that runs on hydrogen fuel cells, I’m going to find a way to adapt or convert my 1978 Ford F-150 to use something other than gasoline (I know, I know…perhaps I should have bought a diesel). Perhaps a combination of “alternative” fuels would be best overall, as then no singular resource will be wiped out, exploited by private business interests or governments, or overly affect the environment in a negative way, and people can tailor their fuel needs to their locality and to vehicular or home heating (again, or whatever) requirements. As Rachel Burton of
Piedmont Biofuels (in Chatham County, N.C.), who seems to have coined the rather brilliant term ‘Slow Fuel’ (a modification of the term ‘Slow Food’), says, “we are believers in a micro-nodal model of energy production that insists that energy be harnessed where it is used … we have decided to include fuel in our 100 mile diet.”
