Comments Forrest has made
Your addendum
Thanks for your thoughtful response to my post, Tom. There is a piece I read in this month's Orion on the power of farmer co-operatives in North Dakota. You can find it at http://www.oriononline.org/pages/om/06-3om/Nace.html I think one of the major solutions to the scale and distribution problems you have referred to in some of your posts is the formation of such farmer co-operatives. Farmers can't wait for the government to help them - I have to admit that I think the USDA is no more a friend of small farmers than Cargill or Monsanto - but they can take action on their own to buy co-operatively owned processing and transport facilities.
On the point about packaged salad greens, I again want to point out a different perspective. My parents, who are very "green conscious" vegetarians, love pre-packaged salad greens. Fifteen years ago, when they travelled outside of the leftie belts of the USA (and they travel quite a bit), it was almost impossible to buy any salad green other than pesticide soaked, dehydrated iceberg lettuce. Today, every supermarket in the entire country sells bags of pre-washed greens. While they may not be as high quality as the greens they grow in their own garden in the spring and summer, they are an enormous step up from what used to be accessible to most of middle America. In other words, while a small organic farmer like yourself might view Earthbound salads as a pitiful substitute for the real thing, for the vast majority of Americans, Earthbound lettuce may be much better than anything they've ever had access to. I don't think this is cause for despair - but rather I think it is an awareness that we should cultivate in our planning for local food systems. Local food systems that require people to entirely rework their lifestyles will be a failure. So will ones that are preachy. Food systems that find ways to market improved products in ways that fit into people's existing patterns (i.e. pre-packaged food in supermarkets in the Earthbound example) will be succesful.
I tend to think that the reason Wal-mart is threatening is not so much because Wal-mart is evil, or big, but that Wal-mart has traditionally sold cheaper merchandise through buying huge lots at reduced prices - and this may limit their interest in buying into these local markets. But what if you approached the produce manager at your local Earth Fare (or Wal Mart) and offered to sell him local organic greens? On Wal-mart's organic bomb posted 3 years, 6 months ago 40 Responses
A few questions
Way back when I was in Econ 101, I learned that when there was alot of demand, and limited supply, prices would rise. How does Wal-mart plan to undersell everyone else in the organic business and simultaneously increase organic volume dramatically? Remember... it takes three years to transition a farm to organic, and wal-mart is trying to do this in one year.
When I lived in the Bay Area (about five years ago), I had a friend who was a farmer turned computer programer. After about ten years of barely making ends meet on a rented piece of land in the northern central valley, he had given up, and now was earning money as a programmer, and gardening on the side. He told me that in his experience, small organic operations could rarely afford the kinds of crop rotation and soil building that he had idealistically believed were the core of organics. They tended, as his operation had done, to overwork their soil and die of exhaustion. Larger farms he knew were able to maintain comfortable profit margins, and thus had time and space to practice Albert Howard-like rotations.
In the context of the northern central valley, perhaps these large organic farms (Lundberg, for example), were much better for the environment. Perhaps better still would have been if the entire central valley had been returned to the verdant grassland that John Muir described. Then we could begin restoring some of California's many endangered species. Of course, it would be much harder to provide the yuppies in San Franisco with their local food without the central valley. But is the food really local when the farmer has to get up at 2 AM to drive four to six hours to the urban farmer's market (as most farmers at most Bay Area markets that I went to did)?
The problem I'm pointing out with this story is that it is extremely difficult to correlate agricultural practices as we know them with sustainability. I don't know the answer, and like many, I distrust Wal-mart. But let's be careful when we assume that "small farms are better." It may not always be the case.On Wal-mart's organic bomb posted 3 years, 6 months ago 40 Responses
Another way of asking
Does industrial farming feed the world?
Did pre-industrial farming feed the world?
Did forest gardens feed the world?
Did hunter-gathering feed the world?I do not know of a single human society in history or pre-history where hunger - and death by starvation - were absent. In many, they were (and still are) commonplace. The problem is not production of food, so much as it is distribution. In hunter-gatherer and early agricultural societies, with limited ability to store and transport food, the distribution problems were seasonal, or related to occasional extreme weather events. In modern societies, the distribution problems are generally more closely related to what welfare economists call "entitlements" - i.e. the ability of people to purchase food (or purchase the inputs necessary to grow their own - such as land, seed, fertilizer, labor).
If our goal is to feed the world, our focus ought to be on wealth distribution more than on agricultural technology. I have seen no credible evidence that hypothetical utopian organic farming would create fewer calories than current industrial agriculture. But I have also yet to see any evidence that organic farming solves hunger problems.
Since many of the hungriest and poorest people in the world are rural people (laborers, and yes, even small landowners), primarily in Africa and South Asia, one of the most helpful things we could do to "feed the world" would be to raise farm incomes in those regions. Cutting first world agricultural subsidies and increasing imports of high value (and value-added) crops from those regions to the wealthy countries might be viable strategies, as would be investing in agricultural technology R & D specific to those regions (instead of breeding more Round-up Ready okra or whatever). Political stability would be a key prerequisite. Global warming is expected to have a disproportionately negative impact on sub-saharan Africa. Thus, we might go so far as to say that a society that is changing its climate cannot feed the world.On A food-politics writer expresses angst at the obscurity of his topic posted 3 years, 8 months ago 24 Responses
Some of us just don't like cities
There are alot of interesting ideas here, and I can't claim to be any kind of expert on "new urbanism." I did read an interesting and highly intelligent critique of new urbanism a while back by libertarian environmentalist Randall O'Toole, called, "The Vanishing Automobile and other Urban Myths." O'Toole, who is better known for his work on the economics of public lands, basically argued that all of the factors identified in the above posts were not that strong compared to the desire of people to live in big homes, with lots of space around them.
I can't speak to the ins and outs of the economic and political arguments, but I think it is important for us to understand that many people, myself included, don't really like living in dense, urban environments, no matter how well designed. Yes, as an environmentalist I hate being dependent on my car, and I also hate the extra expense. I hate commuting. But when I get home, there might be elk grazing in my field. It is quiet. I can make as big of a garden as I want, and I can walk off into the woods. The stars shine at night, and coyotes howl in the swamp. My neighbors live half a mile away - but when I need them, they are always helpful. I might add that I'm fortunate to live in a city small enough that I can have all of these amenities, and still be less than one hour's bike ride from my office. We need to remember that people who don't choose to adopt the "new urbanism" aren't necessarily SUV driving rubes. They may be nature lovers who want nature to be something other than a manicured city park or a weekend trip out into the mountains. I think the philosophy of new urbanism is great - but I've yet to be convinced that it has anything to offer somebody like me. Perhaps you can convince me otherwise. On Why isn't there more new urbanism? posted 3 years, 8 months ago 28 Responses
Crazy Horse, ecosystem people, and equity
Several years ago, I read a book titled Ecology & Equity, by Ram Guha, an Indian sociologist, and Madhav Gadgil, an Indian ecologist. I don't remember all the details of their argument, but the big picture was that ecology and equity were two sides of the same coin. In India, where their examples were taken from, destroying the environment was the same thing as destroying the livelyhood of the poor. They described these poor people as ecosystem people - i.e. people who depended on the ecosystem for their subsistence - as subsistence farmers or migrant pastoralists, or at least with some major component of their livelyhood dependent on products provisioned from the ecosystem. When the government "developed" those resources, it basically redistributed those resources from the ecosystem people to the industrial or global capital people - for example, damming the Narmada River destroyed the livelihoods of people who depended on the river for subsistence in order to provide irrigation water to commercial farmers and electricity to urban areas. Another example - the British took control of the Indian forests in order to put them to "productive use" - providing commercial lumber - and prohibited harvests by local people providing products for their own subsistence.
Here in the US, we are fortunate in that we don't have the widespread, grinding poverty that continues to affect so many hundreds of millions of people in India. The question that I was left wondering after reading Gadgil and Guha was - where are our ecosystem people? How does equity relate to environmental protection in the US? Klingle & Taylor point out, correctly, I think, the elitist roots of the environmental movement, but I think they miss alot of the story. In the environmental world where I work currently, National Forests, environmentalists are frequently accused of destroying jobs and denying access to the common people. These people whose livelihoods we effect are not ecosystem people - they don't depend on the forest for subsistence - instead they seem more like a rural proletariat - dependent on industrial extraction from the forest for their incomes. Similarly, recreationists who wish to drive ATVs or snowmobiles in wilderness areas are people who wish to recreate in vehicles that cost more than 10 times the annual income of an Indian subsistence farmer. Federal land ranchers are by and large far wealthier than the average American.
It seems to me that all of us in federal land battles, "elitist" environmentalists and "poor" loggers, ranchers, and motorized recreationists, are a part of the powerful industrial class that drove the ecosystem people off the land years ago. What ecosystem people? Well - Crazy Horse, who someone else used, is a great example - but it was not only American Indians - it was also white and black subsistence farmers driven off their land by USDA subsidies, rising land prices, and competition from mechanized mega-farms during the first several decades of the 20th century.
The early environmental movement, it is true, largely ignored (and sometimes even aided the wrong side, as the authors point out in their quotes from Muir) in these struggles - but the environmental movement has a long history, dating back at least as far as Aldo Leopold's early attempts at ecological restoration, of aiding the poor and displaced as well. Klingle & Taylor mention some interesting examples, but urban, non-white poverty is not the be-all and end-all of poverty. The Back-to-the-land movement of the 60s and 70s is frequently portrayed as a movement of hippie elites, but at the same time it deeply revitalized many impoverished rural communities - notably those in Northern Vermont and New York that Bill Mckibben, in his new book that I haven't read yet, describes as "the most hopeful place in America." The back-to-the-land movement also provided the genesis for the organic farming movement, which has helped many rural farmers stay on their land, and here in the Northwest, nearly every rural grassroots environmentalist that I've met was a part of that movement.
I'm not exactly sure how to end this post - but I would be very interested in seeing other responses. I think Klingle & Taylor (and Grist) are correct to raise these issues - but I think we need to think more seriously about their ideas and not just assume that Environmentalist = John Muir toting Wilderness fanatic. The story is far more complex (and interesting!)On Environmentalism's elitist tinge has roots in the movement's history posted 3 years, 8 months ago 17 Responses
The myth of rural wealth?
I really enjoyed reading this story about my home, which I hope to move back to someday soon. But I have some questions - in your opening you suggest that the timber communities of northern New England were once prosperous, before international trade and mechanization destroyed the timber industry. What is the basis for making this claim? I am not that old, but my earliest memories of these timber towns (from the 1980s) were of towns that were already sad and decrepit. Was there really a time when, as the author describes, there was a utopian industrial community in the northern forest? I don't have any numbers to support my ideas, but I'm highly skeptical of this claim. The history books that I read about New England mill towns are full of stories of impoverished immigrants, child laborers, and angry and occasionally violent labor disputes. I believe, though I don't have the evidence, that New England grew wealthy through trade (which included manufactured goods and raw materials produced locally), and not through the manufacturing and production of raw materials.
This is important because it gives us direction in what to pursue in the realm of community forestry. If the goals is to restore the golden age of manufacturing and raw material production, we should manage our forests to produce raw materials. If instead, the raw materials are going to be the basis for trade that will make us wealthy, we may want to focus on more highly valued products that have a niche in modern markets - maple syrup or fine furniture come to mind as products where New England has an advantage over other regions.
On Community forests help revitalize New England towns posted 3 years, 9 months ago 9 ResponsesNitrogen Fixation ?
Greenstork - what is your source for nitrogen-fixation in mustard and rapeseed? I never heard this before, and the only articles I can find that discuss nitrogen needs of these closely related plants describe them as heavy nitrogen users - not fixers. On It's biofuel realities that matter, not airy scenarios posted 3 years, 10 months ago 15 Responses
Pimental on biofuels: the 2nd law of thermodynamic
Biofuel fans may be interested in reading a recent paper by David Pimental and Tad Patzek, which alleges that it takes more fossil fuel energy to produce a gallon of ethanol or biodiesel than the energy contained in that gallon.
http://petroleum.berkeley.edu/papers/biofuels/nrrethanol.2005.pdf
My googling for a public version of the paper revealed that the National Corn Growers Association has launched a major campaign to discredit Pimental and Patzek. Demonstrating that they don't have much to discredit with, they try to smear Pimental by associating him with a radical organization known as "The Sierra Club," while simultaneously trying to discredit Patzek because apparently he worked for Shell Oil about 15 years ago. I hope the National Corn Growers suceed in drawing ALOT of attention to this paper.On Some environmentalists wake up to the dangers of biofuels posted 3 years, 11 months ago 10 Responses
Hurray for Fedco!
I've been reading through my Fedco catalog, and I am excited to see the rise of new open-pollinated varieties in their catalog. Between the heirlooms and the modern public breeders, there is much potential. FEDCO is providing markets for these innovative breeders - let's hope that other small seed companies will follow suit.On Cheers and jeers for the GM seed giant. posted 3 years, 11 months ago 3 Responses
farmland dear, profits greater
Tom,
It seems that if land prices are higher in the Hudson Valley, so are the potential profits from farming. In Iowa, land is cheap, but you might not be able to sell your brandywine tomatoes for $5 each. Doesn't this mitigate, at least to some extent, the higher prices that Hudson Valley farmers pay for their land?
I think you are underestimating the role of education and culture in teaching people what food they eat. Friends of mine eat entirely off of food stamps - and buy almost exclusively fresh, local, organic food. They save money by staying away from processed foods, making things from scratch, and buying the less expensive fruits and vegetables (even in Manhattan farmers markets where individual tomatoes cost $5, you can get alot of collards or kale for $1. And those greens have more nutrients in them than the tomato anyway.) This might be more difficult in some neighborhoods (I live in rural Oregon, where access to fresh, local, organic foods is widespread).
I'm not saying I have the answer. But I don't think land prices are the source of the problem - maybe just another factor.On To create a truly sustainable food system, we'll need to make some fundamental changes. posted 4 years, 1 month ago 26 Responses
Good Point
If I could respond to Tom's perspective with a slightly different view:
If you look at the history of any federal subsidy program, I think you will find that it is eventually diverted to benefit the wealthy and powerful. The original New Deal era farm subsidy program was aimed at least in part, at helping small farmers (although it also aimed to decrease their number based on the assumption that trouble on the farm was due to an excess of farmers). Well... now it all goes to large commodity operations - most of which would probably go out of business without government support, or have to change dramatically (perhaps by adopting organic certification?).
Increasing subsidies for local organic agriculture sounds tempting - but I fear it would eventually all get channeled to a few big farming operations - i.e. the eventual ConAgras or Monsantos of the organic world. Whole Foods maybe? Is this a good thing? I hardly think so. Eliminating 14.7 billion in subsidies will drive up prices - helping all the farmers who don't get the subsidies. That would be a big help to most of my farmer friends. The people who would be hurt, I think, would be the poor food consumer. I'd rather see the money coming out of big ag subsidies go to support increases in foodstamps.
ps. I am glad to see that Grist has started offering thoughtful, quality coverage of agricultural issues. It is hard to find (and I admit even to being disappointed with some of Grist's historical coverage of these issues). I look forward to Tom's next post.On Why the Bush Administration looks set to jettison the farm-subsidy program, beloved of industry and posted 4 years, 1 month ago 5 Responses
Even organic American food is cheap
The last time I checked, American consumers spent an average of 6-8% of their annual budget on food. By contrast, in Europe and Japan, average consumers spend 12-15% of their annual budget on food, while in poorer nations, the % is higher - as high as 80% in deeply impoverished regions. Americans are used to food that is really really really cheap, so when we see food whose price actually reflects the ability of the people who grew it to earn a living, we think that it is expensive. Our mass produced cheap food comes from huge farms that provide income to a very small number of people (and need I mention that in spite of our cheap food, or perhaps because of it, we have many more food related health problems than other wealthy countries - we call it "the obesity epidemic"). From a farmer's perspective, organic food is more expensive because it reflects more of the real costs of growing food.
So in short, I don't think it is desireable for food to be cheaper. I think food is really really cheap. Instead of designing federal subsidies to make food cheaper (and thereby drive farmers out of business, as we've been doing in this country for 100 years), why not increase the food stamps program, which helps provide food for low income people, and use a more direct approach to feeding the poor.
Also, everyone likes subsidies - so are subsidies for organic food a good idea? I'd rather see an end to the many subsidies for large-scale, conventional farming (economies of scale? one of the biggest ones is the ability to pay for big scale Washington lobbyists to procure subsidies). The savings could go to increase food-stamps. This would level the playing field between organic and non-organic production, and increase our ability to feed the poor, without any additional cost to the government.
On Seriously, now -- why aren't organics getting affordable? posted 4 years, 3 months ago 18 Responsescombatting hunger
I'm sure, given the readership of this blog, that you will get some comments about how GM foods are not currently labeled (so it is in fact difficult to make a choice to not consume them), and about how they can spread into fields where people don't want them, especially in wind pollinated crops (like wheat & corn). So Instead, I want to respond to your hope that GM foods can help reduce hunger.
Most of the chronically hungry people in the world live in poor countries. People in poor countries live predominantly in rural areas. People in rural areas are largely dependent on agriculture for their income. So most of the world's hungry people depend on agriculture for their income. If food becomes cheaper, the urban poor who work in industry have an easier time buying it, but the rural poor have a harder time selling it. That's right, I am saying that lower food prices will often increase hunger among the most vulnerable populations. So if GM foods reduce food prices, it will increase hunger.
Does that mean GM foods have no role in alleviating hunger and deprivation? Possibly, but not necessarily. There are two important lines of arguement that your comment misses.
First, farm income is the difference between profits and expenditures. Since profits for many poor farmers are largely out of their control - determined by the vagaries of global markets and weather - the best way to increase income may be by reducing costs. If GM crops can reduce costs - say by decreasing losses to pests, or by growing more effectively under drought conditions, or by decreasing the amount of purchased inputs in any way, then they might help the agricultural poor
But, if GM crops make farmers more dependent on purchased inputs, even while they raise outputs, the effect on the agricultural poor will be negative. An interesting historical example of this happened in the American Midwest, when hybrid corn, which must be grown from purchased seed, fertilized and pesticided heavily, and supported by tractors, took over. Output increased - but farm profitability decreased. If farmers in Africa switched to Monsanto marketed Round-up Ready crops, their costs might go up dramatically because 1. they have to buy seeds from Monsanto instead of saving their own seeds from last year 2. they have to buy Round-up from Monsanto. Meanwhile, increased production will probably lead to a reduction in market price. uh-oh!
If GM crops are going to make a big difference in world hunger, it probably won't be because they increase corn productivity... for more details on this, from the folks who taught me all of my agricultural economics, read This paper which argues that the benefits from GM towards hunger will have to come from the crops that the poor grow and eat - which are often tubers or other locally important crops, which receive little public or private investment.
So in short, there are alot of other big problems with GM crops aside from the biodiversity concerns you mention.On News from the GM front. posted 4 years, 5 months ago 10 Responses
paper, fiber, biomass
Well, I'm no expert on the paper industry, but my general sense is that almost all the new investment in the paper sector is going into recycled fibers. The market share of recycled vs. virgin material is rapidly growing. And all wood fibers are not created equal. When I lived in Maine I learned that coniferous trees grown in Northern Maine (and presumably neighborhing New Brunswick and Quebec) make some of the highest quality fibers for paper manufacture. Presumably, western conifers do not make particularly high quality paper fibers. At the same time, new investment in mills in Maine is essentially non-existent, and many mills have shut down. The story there is competition from overseas, as well as from recycled fibers. I believe that there is some new investment in paper manufacture from aspen and other fast-growing hardwood species in the Lake States and Ontario.
There are large pulp mills in the Northwest - for example in Springfield and Albany, OR, and in the Humboldt Bay area of California. I don't think transportation is the major barrier - wood products are often shipped long distance for processing and manufacturing, and costs do not seem prohibitive.
Two other interesting aspects of this story: The company building the biomass plants in this example is a part of the Collins company, poster-children for FSC sustainable forestry. And just yesterday, the US Forest Service announced 4.4 million dollars in grants for biomass energy production. Recipients include the normal host of small timber companies and rural governments, but also include the Forest Guild of Santa Fe, and the Institute for Agriculture and Trade Policy of Minneapolis, both progressive enviro groups. The point I'm trying to make by pointing out that good guys like biomass too is that some biomass energy isn't a bad thing - we can use some waste wood products to generate electricity or heat - the problem comes, as biodversivist pointed out, when we try to scale these things up to some large scale solution to climate and energy woes. I tend to agree with those who see no "The Solution," but instead look intelligently for locally appropriate, well designed solutions, and recognize that those will come from a variety of sources.On Is using trees for biomass a good idea? posted 4 years, 5 months ago 5 Responses
forest biomass and logging
One of the basic facts I learned in my ecosystem ecology and soil science classes is that carbon in terrestrial ecosystems is generally stored in the soil, not in the green and brown stuff (plants) sticking out of the soil. The percentages vary, and I don't have a soil science textbook in my office today (if you are interested, most soil science and ecosystem ecology texts would have this data), but at the extreme end of low carbon storage in the soil are tropical rainforests. I imagine most folks reading this have heard how rainforests are almost entirely above ground ecosystems - i.e. that they cycle nutrients very efficiently and don't have much nutrient content in their soils. Well, about 50% of the organic matter in the rainforest is in the soil. Most other forested ecosystems have signficantly higher percentages of their total biomass in the soil - the extreme is the boreal forests, where as much as 90% of the carbon storage is below ground. Grasslands also have very high percentages of their carbon in the soil.
So if you are talking about the CO2 benefits/costs of burning biomass, you need to pay attention to what is happening in the soil. Conventional logging tears up the soil quite a bit - which leads to a substantial release of CO2, although I'm not aware of any quantititave studies. Of course, helicopter logging doesn't tear up the soil, but I imagine running those big helicopters releases even more CO2.
Mark Harmon, a prominent forest ecologist at Oregon State University, has looked fairly closely at carbon storage in old vs. young forests, and in forest products. He has several technical papers out on the question, a good start that you could find in a local library would be the 1990 paper in Science (coauthored with Bill Farrell and Jerry Franklin - Feb. 9th issue, Vol 247, No 4943, p. 699-702). The basic conclusion is this: a very small percentage of harvested wood enters any kind of long-term storage - a high percentage of the total harvested is left behind as slash or as defective wood, a somewhat smaller percentage is lost in the mill (i.e. sawdust), and a high percentage of wood products have short lifetimes (only structural lumber used to make buildings, a small percentage of the total wood products, has any decent chance of not rotting or being incinerated in the first 20 years. And while a tree might live 150 or 300 years, most buildings have significantly shorter lifespans).
The Forest Service and the wood products industry is putting alot of money into developing these biomass plants throughout the west (and other forested regions) to burn stuff that isn't commercially viable for other wood products production. There are alot of unanswered questions about this approach. One I have is how the emissions of non-carbon pollutants from these biomass plants compares to other emissions. I know that regular wood burning (for heat) is a major source of really nasty stuff like particulates. Perhaps they use more efficient boilers?
A final note - these stories tend to paint the biomass burned during wildland fires as a "waste," but wildland fires play an essential role in maintaining the ecological integrity of many ecosystems, including nearly all forested ecosystems in the western U.S. The government spends billions of dollars (and kills and injures many firefighters) annually suppressing wildland fires that are largely beneficial to fire dependent ecosystems. Major initiatives are going on in much of the West to reintroduce wildland fire - but the timber and fire supression industries would prefer it if the federal land management agencies continued to subsidize supression and logging - and perhaps they will get some of their subsidized biomass power plants built in response to higher oil prices.On Is using trees for biomass a good idea? posted 4 years, 5 months ago 5 Responses
Facism, democracy, and energy
Kunstler posits a final outcome of a sort of agrarian paradise (at least, it sounds like paradise to a young small town farmer, and it sounds from the interview like he would hold the same position). I think it is instructive to compare our current situation to major crises of the recent past (The Black Death doesn't count). During the Great Depression, there was large scale unrest and poverty. Many people's lives changed dramatically, some even died of starvation... but the US reacted to strengthen its democratic institutions and forge a new social contract to try to limit the scale of future economic swings. Germany, in contrast, reacted by electing an ultra-nationalist (Hitler) whose solution was state centralization, blaming the Jews (and others) for everything, and invading neighborhing countries.
Given recent developments, I am not that optomistic about the American people's ability to repeat the electoral sanity of the 1930s. However, I think it is important for those who are worried about peak oil to look beyond simple fear, or material survival, and work to insure that our democratic institutions continue to be sound. Civic engagement...On An interview with doomsaying author James Howard Kunstler posted 4 years, 6 months ago 25 ResponsesNot so hot veggie oil
The problem with all commercial biofuels is agriculture. According to Richard Manning, the average calorie of food contains 10 calories of fossil fuel energy. So if we take food (such as soy oil) and burn it in our cars, we ought to divide our MPGs by 10. Not to mention that agriculture is a major source of NOx emissions even without all those fossil fuels. And the only reason soy can compete with gasoline is the massive government subsidies used to grow it. If we reverted to animal or human powered agriculture, the embodied energy would drop, but the horses and people would eat all those surplus calories. A friend of mine at Stanford did his undergraduate thesis comparing the net emissions of biodiesel and gas as auto fuel, and found that biodiesel was much better at the tailpipe, but that it was worse when the full production costs were calculated. Unfortunately, I lost track of said friend, and I don't have a copy of the paper, nor do I know whether he published it.
Of course, recycling restaurant oil is using a waste product, and looks much better, but again, it seems problematic. Do we really want to be dependent on restaurants that serve people really really unhealthy food (i.e. food that is deep fried)? And how much waste restaurant oil is out there? Today, there is plenty for all the hippies and eco-freaks doing veggie oil conversion - but if this catches on I'm sure it won't last long.
I don't mean to suggest we shouldn't try out alternative fuels, but we need to be cautious about these seeming technological magic tricks with biomass fuels. Humans already appropriate a huge percentage of the earths primary productivity, and that is without major investments in biomass energy from the industrialized world. If it seems too good to be true, its probably because it is.On Umbra on hybrids vs. veggie-oil cars posted 4 years, 8 months ago 11 Responses