FOOD MILES: An important factor in measuring sustainability?

carrotsAndrew Sullivan believes that Ronald Bailey has exposed a food miles farce, but you can’t compare bananas to apples without considering the reality of unsustainable consumption and the unsustainability of industrial agriculture.

Bailey argues that using food miles—the distance food travels to get to your plate—as a factor for sustainability isn’t realistic. He gives several examples in an attempt to discredit the food miles argument, but these examples aren’t strong enough to discredit the argument. For example, he cited a study that found the “cold storage of British apples produced more carbon dioxide than shipping New Zealand apples by sea to London.” However in many parts of the world like Michigan, it is certainly unsustainable to purchase apples from a Michigan supermarket that came from New Zealand when locally grown organic Michigan apples can be purchased in a local Michigan farmer’s market. Furthermore, the energy or fuel used to transport New Zealand apples to Michigan is very high.

I understand what Bailey is trying to argue, but he isn’t considering all the factors. For example, he argues “It is possible to grow bananas in Iceland, but Costa Rica really has the better climate for that activity.” Certainly, bananas should be purchased and transported from the best place possible, but there are other factors in addition to climate or suitability that should be taken into consideration when determining the best place possible such as distance, infrastructure used to produce the food, fuel costs, in addition to the impact on the local environment and markets.

I don’t believe consumers shopping locally in Michigan expect to buy bananas grown in Michigan, but if the closest and best place is Costa Rica, then Costa Rica is reasonable. On the other hand, I believe that some consumers have a problem with purchasing apples from New Zealand or blueberries from Chile, when the same produce can be purchased locally.  To my knowledge, New Zealand apples don’t offer anything substantially different than apples grown in the United States, so purchasing apples grown in New Zealand seems silly or unreasonable.  Furthermore, if consumers known as locavores decide to purchase produce from within a 50- or 100-miles radius, then that’s their choice, and their choice saves a lot of energy.

Ultimately, I believe Bailey’s assessment is lacking because it seeks to discredit the food miles argument when the food miles factor is still a very important factor in determining sustainability. He says, “Food miles advocates fail to grasp the simple idea that food should be grown where it is most economically advantageous to do so,” but he fails to take into consideration rising fuel consumption and rising fuel prices. More than ever, it is important to conserve resources where possible. Furthermore, climate change policy is seeking to cut out unnecessary carbon where it exists.

Personally, I believe the consumer has a moral responsibility to purchase food packaged in materials that can be recycled or food that can be locally or organically grown in order to force industry to make more sustainable decisions. Of course, not all people have the luxury of making sustainable decisions because they may not have the knowledge or resources to do so, but many Americans are in the position to make better choices to some degree, and there are several ways to contribute to sustainability. For example, you can: (1) focus on purchasing produce grown within a 100-mile radius, (2) commit to purchasing a portion of your food from a local farmer’s market during the summer, (3) make a good faith attempt to purchase sustainable seafood, (4) commit to some type of vegetarianism, or (5) purchase food that comes in reduced and recyclable packaging. I agree with Marc at In One Ear… Out the Other:

Yet despite the versatility of such crops, we still rely on far away industrialized agriculture to provide most of our diet, and the reason is that the historically low price of fuel has allowed us to concentrate and specialize our agriculture to certain regions. Most of our cereals in this country are produced in the plains states, our vegetables in California and poultry and pork to the South, and those products are then shipped across the country from those locations because of the benefit of cheap fuel. The system reinforces itself too, cheap Plains states cereals are shipped to the South to feed chickens. Guano is collected from Southern chicken farms and used for fertilizers out West, and etc.. The system works and works well, economically speaking, to the extent that we have cheap fuels for transportation.

Cheap fuels, however, are not likely to continue to be a reality. Grains grown in South Dakota fall at the same latitude and growing season as grains to be grown in New York, yet most New Yorkers still rely on Western grains. To drive through Western New York and it becomes immediately evident that those crops can and are grown successfully there; there are fields and fields of corn, yet hardly any are intended for human consumption. The majority is “field corn” or corn grown to supplement cow feed for local dairy production. However, besides for the economics of cheap fuel, there is no real reason not to diversify.

So while carbon emissions from food transport may represent a small part of overall emissions, its important to the extent that its an unsustainable and soon to be economically irrelevant portion. Also, when we’re talking about reducing carbon emissions globally by a certain date by 10%, 20%, 40% – that 1% becomes all the more significant.


Photo source for attribution. The author or licensor of this image does not endorse my work or me and their image is protected under an attribution license.

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BLOG ACTION DAY 2008: Poverty, over-consumption, and the bushmeat trade

Blog Action DayCertainly, people consume their way to poverty, and the affects of over-consumption and living unsustainably is more obvious in some areas of the world than others. For example, in certain African landscapes over-consumption is readily observable, but in parts of the world like the United States of America, the problems associated with over-consumption are not readily observable, because we live comfortable lives, subsidize our gluttony overseas, and often consume at the expense of other countries.

A symptom of over-consumption is the loss of biodiversity, particularly through the bushmeat trade and deforestation. An argument is being made that legalizing bushmeat will alleviate poverty or solve the ongoing food crisis. Not surprisingly, there is resistance to this remedy.

Richard Leakey is making several arguments against legalizing bushmeat, so he does not believe legalizing bushmeat will alleviate poverty. Some of his arguments include (1) the importance of wildlife in providing ecosystem services for people, such as seed dispersal, since “there is evidence that conserving primates, rather than eating them, will actually enhance food availability for humans”; (2) the fact that some species are already critically endangered and cannot sustain hunting pressure; (3) the need for alternative forms of agriculture such as bee-keeping and farming cane rats or grasscutters, which are already a bushmeat favorite; and (4) the spread of zoonotic diseases such as Ebola. HIV, the virus that causes AIDS, is thought to have jumped to humans because of bushmeat. From Wildlife Extra, UK:

Legalizing bushmeat hunting will not solve the food crisis. I am incredulous that the Centre of International Forestry Research (CIFOR) would suggest that bushmeat hunting be legalized, giving the local people the task of policing themselves. This position shows remarkable naïveté and totally fails to understand the realities on the ground. A hungry population is never going to practice conservation of food, especially where it can be had free from the forest.

CIFOR argues that since up to 80% of the rural households in central and western Africa already depend on bushmeat for their daily protein requirements, a blanket ban on the trade would endanger both humans and wildlife. They call for regulated but legal uptake of wildlife protein. Maybe, but just how can this be done? There are no mechanisms to regulate this even with the best legislation.

.       .       .

I do not personally dispute the tragedy of the poor but allowing them to hunt and encouraging a process that will result in exploitation of wildlife will not alleviate their poverty. Why don’t people encourage the rearing of chickens, fish or cane rats to alleviate their protein deficiency? This will bring development and a better and healthier existence.

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AGRICULTURE: Redefining meat as sustainable by farming alternative livestock instead of breeds that are large, over-bred, and energy-intensive

Farming smaller cattle breeds

Dexter cattle were considered an endangered livestock breed, but environmental concerns in addition to rising energy and food costs are making mini moos like Dexter cattle popular again. From the Times Online:

For between £200 and £2,000, people can buy a cow that stands no taller than a large German shepherd dog, gives 16 pints of milk a day that can be drunk unpasteurised, keeps the grass “mown” and will be a family pet for years before ending up in the freezer.

The Dexter, a mountain breed from Ireland, is perfect for cattle-keeping on a small scale, but other breeds are being artificially created to compete with it, including the Mini-Hereford and the Lowline Angus, which has been developed by the Australian government to stand no more than 39in high but produce 70% of the steak of a cow twice its size.

.       .       .

“As long as you’ve got plenty of grass they will be fine. You don’t really have to feed them.”

.       .       .

In America, small cow breeds such as the mini-Hereford are catching on among professional farmers keen to save money as the cost of feed skyrockets. These Herefords consume about a third less feed than normal cows and produce proportionately more beef for the amount of grain they eat.

Kangaroo ranching

Hoof stock such as cattle, goats, and sheep damage the land as they graze, and are susceptible to drought and disease. Furthermore, cattle produce a lot of methane, which is a greenhouse gas. However, it has been proposed that Australians should be ranching native species of kangaroo for meat in order to fight climate change. Kangaroo has been described as tasting “a little bit like deer“ or “a nice cut of beef.” From ABC Online, Australia:

In fact, 11 per cent of Australia’s total greenhouse gases come from cattle and sheep.

Kangaroos are animals that don’t burp methane because they have different micro-organisms to help them digest food. If we were to replace some of the cattle and sheep in Australia with kangaroos we could reduce the number of animals producing methane and at the same time promote natural habitats instead of hoof-damaged pastures.

.       .       .

Current prices for kangaroo products are lower than they are for cattle, sheep and wool. However, the cost of producing a kilogram of kangaroo meat from a free-ranging animal that needs minimal management would be lower than those for cattle or sheep. For example, there are no costs for fences or yards, internal or external parasite control, shearing, crutching, purchasing new genetic material (e.g., stud rams and bulls), branding, dehorning or castrating.

.       .       .

Livestock grazing damage to native ecosystems has contributed to the extinction of at least 20 species of mammals and continues to threaten around one quarter of the plant species listed as endangered. Fewer livestock and more kangaroos could include a reduction in hard-hoofed livestock damage to river environments, improved soil conservation, fewer weeds, increased capacity of vegetation to respond after drought, and improved water quality. These changes can improve native environments leading to an increase in habitat quality for other species such as emus, wombats, lizards and bilbies.

Raising giant rabbits

The North Koreans and Chinese are interested in breeding German gray giant rabbits as a source of protein for their people. From ABC News:

Could a plan to feed starving people with giant rabbits really work?

Szmolinsky estimates that it costs about $1,000 a year to feed the 60 bunnies he keeps in his yard. When you think that each full-grown rabbit has 15 pounds of meat on its bones, though, the payback is handsome.

Fifteen pounds is the equivalent of 60 hamburgers, but it’s not all good eating. The 15 pounds include the liver, heart, stomach, and even the meat on the rabbits’ gigantic heads.

As the old saying goes, they breed like rabbits. While one cow has one calf every year, one female rabbit can give birth to 16 bunnies in a year, and a male rabbit can impregnate two female rabbits every day.

Even if Szmolinsky doesn’t ship any more rabbits to North Korea, if North Koreans breed the animals correctly, the 12 they already have could multiply to more than 1 million in just eight years.

UPDATE 1 ( JAN. 10): A beef producer claims that his grass-fed production model is able to match the productivity of confinement systems. From the Winnipeg Free Press (emphasis added):

Churchill is the founder and co-owner of the Minnesota-based Thousand Hills Cattle Co., which contracts with about 50 family farms and ranches in the northern United States to produce 100 per cent grass-fed cattle. Those cattle are processed through a small-scale plant in Minneapolis and made into branded meat products for distribution through restaurants and retail outlets.

His production chain delivers a high-quality product to consumers who are willing to pay up to double commodity beef prices. It also pays farmers prices that are an average premium of 15 per cent.

He’s passionate about the relative merits of grass-finished beef from an economic, social as well as environmental viewpoint. It’s beef with a story and in his view, a lighter carbon footprint.

.       .       .

Once you factor in the bovine’s methane-spewing ruminant digestive system, the costs of producing and transporting feed, manure management, transportation, processing and distributing the refrigerated or frozen product — beef is seen as the major culprit.

Grass-fed systems may be more natural and socially appealing, but many researchers say they don’t hold up to scrutiny, primarily due to their lower productivity. While confinement systems have resulted in higher greenhouse gas emissions per animal, the system overall produces significantly more meat with fewer animals.

By comparison, traditional grazing takes more time to finish an animal and it creates relatively more methane gas because forages are harder to digest.

This is where Churchill believes he holds the trump card. What if the forage-finished systems were as productive as the feedlots?

“The confinement industry’s common response to criticism right now is to say ‘we have to feed the world’ and that doesn’t work if there are viable (alternative) models out there,” he said.

Churchill said the grass-fed production model that feeds his supply chain is able to match the productivity of confinement systems because it uses highly productive land that would otherwise be sown to crops like corn and soybeans. The high-quality forages produced are harvested through rotational grazing. Typically, cattle are grazed on marginal lands not suitable for annual crop production.

Churchill says his approach increases the productive capacity of the land while reducing its carbon footprint. “By taking it out of corn and soybean rotations and growing very high-quality forages with it, I am actually producing more beef per acre than if I had harvested the corn and the soybeans and brought them to a feedlot.”

Churchill also points out the economics of intensive livestock production systems are predicated on cheap energy and mountains of cheap feed grain — neither of which are likely to exist in the future. If he is correct, the political will to continue propping these systems up will evaporate as equally productive alternatives develop.

Still others say there is no debate; we should all just stop eating meat and obtain our protein from pulse crops like peas, beans and lentils. Nutritionally speaking, the latest research says we’d all be healthier with less meat and more legumes in our diets.

However, much of our farmland is highly erodible and can’t support annual crops over the long term — especially pulse crops that leave little by way of crop residue behind. Ruminants such as cattle are uniquely equipped to convert the sun’s energy into consumable protein, while at the same time playing a valuable role in nutrient-recycling and soil-building.

In all likelihood, meat will continue to be on the menu, but there might be less of it and it will probably cost more.

Video: Grass-fed vs. corn-fed beef: Feeding cattle fast food: Some farmers are feeding their cattle a mixture of M&Ms or chocolate and potato chips in addition to the corn-based feed. I imagine the chocolate and potato chips aren’t satisfactory to market or suitable for human consumption.

Information on the images used in this blog post:

Photo source for attribution for the Dexter cattle image is here, and the photo source for attribution is here for the grass-fed cattle image. The authors or licensors of these images do not endorse my work or me, and their images are protected under an attribution license. The giant rabbit image was found here, and the Kangaroo meat in the supermarket image was found here

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