Conspicuous in Their Absence. Pesticides and Environmental Impacts.

This week a new paper entitled Leverage Points for Improving Global Food Security and the Environment was published in the journal Science. (Science Daily summary)

The authors focus on the 17 major crops that account for the vast majority of calories produced and consumed, inputs used and environmental impacts from agriculture. The heavy hitters, no surprises. Corn, wheat, rice and cotton. The big impacts that they focus on are water use; carbon, nitrogen, phosphorus and methane pollution of air and water, and tropical deforestation. The major points of leverage included switching from crops for meat production to crops for human consumption, better irrigation, closing the massive yield gap in countries with low performing agriculture, reducing food waste (especially meat waste) and improving the precision use of inputs like nitrogen and water in countries where overuse is the biggest problem.

Two things might surprise folks who get their sustainable ag news from urban reporters and not from academics. The first is that the percentages of over use of inputs in the US are fairly low, while our impact is large, not because our farmers are out of control, but rather that we produce so much freaking food that a few percentage points of over use is a big impact relative to the production in other countries.

The second is the absence of even a mention of pesticides as a major environmental impact anywhere in the paper. Why is this? Because, while pesticides remain a labor issue for farm workers, especially in developing countries, they have improved so much in their mode of action and use in the last half century that they really don’t rate as a major environmental impact, at least in comparison to the big foot issues raised in this paper.

The salience of pesticides as an environmental impact doesn’t come from the size of their effect on the environment, but rather on their psychological impacts. It’s better understood by run of the mill chemophobia. Just as we are more afraid of shark attacks than slipping in the shower, pesticides as poisons or carcinogens have a much greater grip on the public imagination than unsequestered carbon, gulf deadzones, or methane pollution. Tropical deforestation may be the biggest agricultural impact, but there aren’t many mommy bloggers wondering about how it could affect their kids health. As Steve Savage has explained, neither the ag companies that have improved their products nor the environmental groups that have pushed for improvements have much incentive to publicize the changes, so they go unheralded.

The other reason that it has great salience for the general public is because it is the main political football in the culture war between organic and so-called conventional agriculture. Pesticide use, while not absent from organic farming, is the most visible and highly touted difference that sets organic apart. On issues like carbon, methane, nitrogen and phosphorus pollution, organic doesn’t have much to brag about. When it comes to the yield gap, it’s organic that has some splainin’ to do. Thus, a big to-do is made about synthetic pesticides, despite their relatively minor environmental impacts.

There is more to look at in this paper, but the absence of pesticides as a major environmental impact was the first thing that popped out at me.

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On Rising Food Prices and Low Inflation

Last week, NPR had a fine, short piece on the disconnect between consumer’s very real observations of rising food prices and economist’s less than comforting assertions about low inflation.

Economists track inflation through the Consumer Price Index which looks at a basket of goods that tend to have stable prices to screen out volatility. At 2.1 percent it is currently well below the historic average of 3.2 percent. This is the rate for things like TVs, phones and refrigerators. What it doesn’t look at is two of the categories that consumers are the most sensitive to: food and fuel.

Marilyn Geewax does a fine job explaining why food costs are up well above the 2.1 percent rate of inflation, namely the impact of three years of drought on cattle stocks and the PED virus that has been worrying the nation’s pork supply.

I think, however that a finer point needs to be put on the matter. Inflation is a very specific term for economists and it is a form of rising prices, but it is not synonymous with rising prices and that is something that is not very well understood. In fact, I know people with degrees in economics that can’t seem to keep the difference between inflation and rising costs straight. What economists are looking at when they look at inflation is signs of ‘too much money chasing too few goods’. It’s a money supply problem. Too much money in circulation, interest rates too low, employment levels too high, factors like that. What it isn’t is a measure of increased costs and stresses in supply chains. Three years of drought reducing winnowing cattle stocks. Natural gas shipments displacing grain shipments in Canada. The PED virus cutting pork stocks. Those are all reasons that food and fuel costs can go up, but they don’t constitute inflation.

Go back to the two posts we did on the price of oats coming from Canada. I looked at the impact of a tough winter and Canadian oat farmer Ron Rein explained the impact of rail policy in Canada. It was stresses in the supply chain that were causing oat prices to rise, not inflation. Cold comfort, but worth understanding the difference. If only so that you don’t throw your cereal bowl at the radio when they announce that inflation is still low. You wouldn’t want to waste that milk. It’s getting expensive.

The Road to Fairtrade (and points elsewhere) is Paved with Good Intentions

If you aren’t addressing the underlying economics and shaping the market through policy, you are swimming upstream at best. Some might say pissing in the wind.

According to Mr Sylla’s calculations, for each dollar paid by an American consumer for a fair-trade product, only three cents more are transferred to the country it came from than for the unlabelled alternative.

Is Transformation Really that Different from Backcrossing?

GUEST POST: Benjamin Edge

Benjamin Edge (@edgeben) is a former wheat breeder for Pioneer Hi-Bred, International, a DuPont Company, and for Clemson University. He has released 10 PVP protected wheat varieties and is a co-inventor of record for 5 wheat variety patents. He has taught classes in plant breeding, biology, and computer technology.

Transformation, the insertion of genes into an organism through the use of a ‘gene gun’ or a bacterial vector, is a tool used by plant breeders to introduce new traits to a crop when there is not enough readily useful variation present in the crop they are trying to improve. Transformation results in what we commonly refer to as genetically modified organisms, or GMOs. While some consider this a risky technology,  transformation is actually very similar in effect to what conventional breeders do when they find a gene of interest in a wild relative, and use backcrossing to incorporate that gene into an adapted variety.

Backcrossing is a VERY effective tool of conventional plant breeders (Briggs and Knowles, 1977). Once you find a trait you are interested in, you can move that trait from a wild relative (closely related species) or from any member of the species you are working with into an adapted variety with great repeatability (reproduced or repeated easily). Backcrossing is used when you have a well adapted variety, say plant A, with high yield, large seeds, and strong stems, but with some weakness, such as susceptibility to a disease. If you find a plant, say plant B, with disease resistance, but poor yield, small seeds, and weak stems, you can use backcrossing to incorporate that disease resistance trait into plant A, what we call introgression of the trait.

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Slow Talkin’ Mo.

As painful as it is to encourage people to listen to me speak, I think my first radio interview on food politics (remind me to tell you about the time I was interviewed for Australian public radio about Elvis’ eating habits) went pretty well. It was a good warm up for a talk I’ll be doing this Sunday in Olympia, WA. The interview was with me and Max DeJarnatt from the Center for Environmental Modernism, one of the organizers of Sunday’s event. John Ford at KAOS is friendly, sharp, and skilled radio interviewer. He did a great job making this amateur get through 45 minutes without too much dead air.

The FB link to the talk can be found here.

The Center for Environmental Modernism
Moving the Food Movement Forward
How Good Science, Smart Policies, and Community Organizing Can Change the American Food System
A Presentation by Marc Brazeau
Date Sunday, June 29, 2014 – 6:00pm to 8:00pm
Location Traditions Café and World Folk Art
300 5th Avenue SW, Olympia, WA 98501
Despite the rapid growth in the food movement in recent years, the major problems facing America’s food system—confusing nutrition information, exploitation of workers, environmental degradation, food security, to name just a few—have yet to see any real shift. Activism has surged, but changes in policy and politics have lagged. Marc Brazeau, blogger and editor for the website, attempts to explain why this is the case by critiquing the food movement’s major priorities, and by offering a new progressive agenda for America’s agricultural future.

Back from the road

Blogging resumes tomorrow morning. Lots to talk about.

The Simplest Solution to the Greek Yogurt Problem

Modern Farmer has an interesting piece on Greek Yogurt’s Dark Side detailing the problem of disposing tens of millions of gallons of acid whey and some of the solutions that are being developed to make use of it. The central problem is that making Greek style yogurt produces more byproduct than traditional yogurt. That is because more liquid is strained in order to concentrate the protein content. You need to concentrate the protein content because you are using less fat and you want that lush texture and mouthfeel that traditional low-fat yogurt lacks.

There is a very simple solution to the problem. Stop eating Greek style yogurt. Stop avoiding dairy fat. Eat whole milk yogurt. It is more nutritious, it tastes better and it probably better for weight management and is not associated with heart disease. Problem solved.


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