Tag Archives: tom philpott

Buying Local and Organic? You’re Still Eating Plastic Chemicals

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Bisphenol A (BPA) and phthalates are what’s known as “endocrine disruptors”—that is, at very small doses they interfere with our hormonal systems, giving rise to all manner of health trouble. In peer-reviewed research, BPA has been linked to asthma, anxiety, obesity, kidney and heart disease, and more. The rap sheet for phthalates, meanwhile, includes lower hormones in men, brain development problems, diabetes, asthma, obesity, and, possibly, breast cancer.

So, ingesting these industrial chemicals is a bad idea, especially if you’re a kid or a pregnant woman. But avoiding them is very difficult, since they’re widely used in plastics, and are ubiquitous in the food supply. The federal government has not seen fit to ban them generally—although the FDA did outlaw BPA from baby bottles last year (only after the industry had voluntarily removed them) and Congress pushed phthalates out of kids’ toys back in 2008. Otherwise, consumers are on their own to figure out how to avoid ingesting them.

Unfortunately, that’s a really hard task—and eating fresh, local, and organic might not be sufficient, as new research (abstract), published in the peer-reviewed Journal of Exposure Science and Environmental Epidemiology, shows.

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Buying Local and Organic? You’re Still Eating Plastic Chemicals

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Best. Diet. Study. Ever.

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“All calories count,” declared the voiceover in an infamous recent Coca-Cola ad. “No matter where they come from, including Coca Cola and everything else with calories.” Message: a calorie is a calorie; don’t blame our sugary drinks for your troubles!

But all calories aren’t created equal, two recent studies suggest. The first one, on sugar, is alarming; the second, on the so-called Mediterranean diet, is comforting.

Let’s get the bad news out of the way first.

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Best. Diet. Study. Ever.

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Study: Organic Tomatoes Are Better for You

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Remember that Stanford research meta-analysis purporting to show that organic food offers no real health advantages? (I poked some holes in it here). Buried in the study (I have a full copy but can’t post it for copyright reasons) is the finding that organic foods tend to have higher levels of phenols—compounds, naturally occurring in plants, widely believed to fight cancer and other degenerative diseases.

After the study’s release, one of the study’s authors, Dena Bravata, downplayed that result in a New York Times report :

While the difference in total phenol levels between organic and conventional produce was statistically significant, the size of the difference varied widely from study to study, and the data was based on the testing of small numbers of samples. “I interpret that result with caution,” Dr. Bravata said.

A paper published Feb. 20 in PLOS One highlighted the link between organic agriculture and phenols. A team of researchers compared total phenol content in organic and conventional tomatoes grown in nearby plots in Brazil. By cultivating the tomatoes in the same microclimate and in similar soil, the researchers were able to control for environmental factors that might otherwise affect nutrient content.

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Study: Organic Tomatoes Are Better for You

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Do GMO Crops Really Have Higher Yields?

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According to the biotech industry, genetically modified (GM) crops are a boon to humanity because they allow farmers to “generate higher crop yields with fewer inputs,” as the trade group Biotechnology Industry Organization (BIO) puts it on its web page.

Buoyed by such rhetoric, genetically modified seed giant Monsanto and its peers have managed to flood the corn, soybean, and cotton seed markets with two major traits: herbicide resistance and pesticide expression—giving plants the ability to, respectively, withstand regular lashings of particular herbicides and kill bugs with the toxic trait of Bacillus thuringiensis, or Bt.

Turns out, though, that both assertions in BIO’s statement are highly questionable. Washington State University researcher Charles Benbrook has demonstrated that the net effect of GMOs in the United States has been an increase in use of toxic chemical inputs. Benbrook found that while the Bt trait has indeed allowed farmers to spray dramatically lower levels of insecticides, that effect has been more than outweighed the gusher of herbicides uncorked by Monsanto’s Roundup Ready technology, as weeds have rapidly adapted resistance to regular doses of Monsanto’s Rounup herbicide.

And in a new paper (PDF) funded by the US Department of Agriculture, University of Wisconsin researchers have essentially negated the “more food” argument as well. The researchers looked at data from U-Wisconsin test plots that compared crop yields from various varieties of hybrid corn, some genetically modified and some not, between 1990 and 2010. While some GM varieties delivered small yield gains, others did not. Several even showed lower yields than non-GM counterparts. With the exception of one commonly used trait—a Bt type dessigned to kill the European corn borer—the authors conclude, “we were surprised not to find strongly positive transgenic yield effects.” Both the glyphosate-tolerant (Roundup Ready) and the Bt trait for corn rootworm caused yields to drop.

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Do GMO Crops Really Have Higher Yields?

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New Study: Common Pesticides Kill Frogs on Contact

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To me, there are few more comforting sights on a farm or in a garden than a frog hopping about amid the crops. Frogs and other amphibians don’t just look and sound coolâ&#128;&#148;they also feast upon the insects that feast upon the plants we eat. These bug-scarfing creatures are a free source of what is known as biological pest control.

But modern industrial agriculture doesn’t have much use for them. It leans on chemistry, not biology, to control pestsâ&#128;&#148;and in doing so, it’s probably contributing to the catastrophic global decline of amphibians, a natural ally to farmers for millennia. The irony is stark: in industrial agriculture’s zeal to wipe out pests, it is helping to wipe out those pests’ natural predators. The latest evidence: a new study showing that exposure to common pesticides at levels used in farm fields can kill frogs rapidly.

For a decade or so, it has become increasingly clear that widely used herbicides like Syngenta’s atrazine, in tiny amounts found in streams after running off from farm fields, do crazy things to the sexual development of frogs. Such “endocrine-disrupting chemicals” have what scientists call chronic, not acute, effects on amphibiansâ&#128;&#148;that is, they don’t kill them outright, but they alter them profoundlyâ&#128;&#148;even change their gender. (See Dashka Slater’s profile of a scientist who documented atrazine’s impact on frogs, earning a backlash from Syngenta.) Monsanto’s blockbuster herbicide Roundup also exerts subtle but important harm on amphibians, research suggests.

Again, this research focuses on what happens to amphibians when they encounter agricultural poisons at low levels in ponds and streams. But what happens when they are actually sprayed with chemicals in farm fields? That’s where the new study, a recent peer-reviewed paper by a group of German and Swiss scientists, comes in. They write that the phenomenon of frogs experiencing direct contact with pesticides has been little-studied, even though the scenario is quite common on the groundâ&#128;&#148;farmland has become one of the “the largest terrestrial biomes on Earth, occupying more than 40% of the land surface,” and thus represents an “essential habitat for amphibians.”

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New Study: Common Pesticides Kill Frogs on Contact

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DOJ to Big Beer: We’re Cutting You Off

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Like a drunk closing down a bar, beer behemoth Anheuser-Busch InBev doesn’t know when to stop. That’s the message of the Department of Justice’s recent lawsuit to block A-B InBev’s $20.1 billion takeover of Mexican beer giant Modelo, maker of the iconic (and, in my opinion, insipid) Corona brand, along with other popular brands like Pacifico, Negro Modelo, and Victoria. According to the DOJ’s complaint (PDF), A-B InBev already controls 39 percent of the US beer market, rival MillerCoors owns 26 percent, and Modelo has 7 percent.

By the DOJ’s reckoning, allowing A-B InBev and Modelo to combine would bring AB InBev’s market share up to 46 percent, leaving two companiesâ&#128;&#148;A-B InBev and MillerCoorsâ&#128;&#148;with 72 percent of the beer market. That’s about three of every four beers consumed in the United States.

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DOJ to Big Beer: We’re Cutting You Off

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The Surprising Connection Between Food and Fracking

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In a recent Nation piece, the wonderful Elizabeth Royte teased out the direct links between hydraulic fracturing, or fracking, and the food supply. In short, extracting natural gas from rock formations by bombarding them with chemical-spiked fluid leaves behind fouled water—and that fouled water can make it into the crops and animals we eat.

But there’s another, emerging food-fracking connection that few are aware of. US agriculture is highly reliant on synthetic nitrogen fertilizer, and nitrogen fertilizer is synthesized in a process fueled by natural gas. As more and more of the US natural gas supply comes from fracking, more and more of the nitrogen fertilizer farmers use will come from fracked natural gas. If Big Ag becomes hooked on cheap fracked gas to meet its fertilizer needs, then the fossil fuel industry will have gained a powerful ally in its effort to steamroll regulation and fight back opposition to fracking projects.

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Tom’s Kitchen: Wine-Braised Beef Short Ribs

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Braising—cooking something, usually meat, at low temperature in a covered pot with a little liquid—is a fundamental technique. Demanding a little preparation and a lot of patience, braising ever-so-slowly transforms tough, inexpensive cuts of meat into something sublime—and conveniently napped in its own luscious sauce (i.e., the cooking liquid). If you’re a meat eater and you haven’t braised before, now is the time. It’s not something you’ll be tempted to do in the summer.

I got the braising bug recently through the confluence of two factors: a cold snap here in Austin and the arrival of an advanced copy of Michael Pollan’s new book Cooked: A Natural History of Transformation, due out in April. I’ll have more to say about it soon—expect a review around publication date—but let it suffice to say for now that it contains an entire, very evocative chapter on the act of slow cooking meat in a little liquid.

Pollan’s prose made me crave the smell of beef, mirepoix vegetables—onions, carrots, and celery—and red wine gurgling gently on the stovetop. That is the essence of a French-style braise—you can also use the flavor palates of other cuisines. (In fact, for a Tom’s Kitchen last year, I braised pork ribs in a Mexican-style chile-pepper sauce; and you could certainly do the same for beef ribs.)

To me, the most attractive candidates for the braising pot are tough, bone-in cuts like ribs. Tough cuts are tough because they’re full of collagen, and braising works by melting the collagen into gelatin, giving rise to fork-tender meat. And bones are good because they enrich the cooking liquid, essentially turning it into a full-bodied sauce. The result is supposedly really good for you—the radical whole-foods group Weston A. Price Foundation ascribes great nutritional value to bone-enriched stocks:

Stock contains minerals in a form the body can absorb easily—not just calcium but also magnesium, phosphorus, silicon, sulphur and trace minerals. It contains the broken down material from cartilage and tendons–stuff like chondroitin sulphates and glucosamine, now sold as expensive supplements for arthritis and joint pain.

Braises tend to taste even better the the day after cooking, but there’s another reason to cook beef short ribs a day in advance: if you can let the cooking liquid cool overnight, the fat can be easily skimmed away. Beef ribs are a fatty cut, and too much fat in the final sauce makes the dish overrich. You can also serve them the same day—just carefully skim the cooking liquid of fat before reducing it in the recipe’s final step.

Wine-Braised Beef Short Ribs
Serves 4, with a little leftover

Olive oil
Fine sea salt and freshly ground black pepper
4 pounds beef short ribs from grass-fed cows
1 large onion, diced (here’s a great video for a simple, effective onion-dicing technique)
2 stalks celery, diced
2 carrots, diced
1 bottle inexpensive but drinkable red wine, preferably not aged in oak
1 bay leaf, plus some fresh or dried thyme

Pat the beef ribs dry with a towel, and liberally season them with salt and pepper on all sides. Place a heavy-bottomed Dutch oven or a brazier (a shallow version of a Dutch oven) over medium heat, and add just enough oil to coat the bottom. When it’s hot, brown the ribs on all sides. Be patient and allow for a nice caramelization—it will add big flavor to the dish.

Remove the ribs to a plate and add the diced veggies to the pot. Saute them, stirring often with a wooden spoon, until they’re very soft. As you stir, try to scrape the brown bits from the bottom of the pan into the sizzling veggies. If they the veggies to scorch before they’ve turned soft, turn the heat down a bit.

Wine + mirepoix veggies = magic

Now add the wine and herbs and turn the heat to high. Again, stir with a wooden spoon, liberating any brown bits that might still be clinging to the bottom. Bring to a boil, and let the wine reduce by about a third. Now turn the heat to the lowest setting on your stovetop, and place the ribs, bone side down, along with any juices that have accumulated under them, into the pot. Cover and let them simmer gently, checking every half an hour or so, until the meat is very tender (a butter knife should easily penetrate it). This will take about three hours.

Remove the cooked ribs to a plate, and pour the cooking liquid into a wide-mouthed jar. Cover both and store in the fridge overnight. Clean the pot. The next day, about an hour before you plan to eat,, skim the hardened fat from the top of the cooking liquid, and then dump the cooking liquid into the cooking pot. (Actually, the “liquid” may retain the shape of the jar—the gelatin from the bones will have given it considerable body.) Turn the heat to medium to melt the liquid. When it is fully melted, turn the heat to high and let it boil until it has reduced by about half. Taste for salt and pepper. Turn heat to low, and return the ribs, bone side down, to the pot. Cover, and let them simmer gently until heated through. Serve the ribs napped in their sauce, with a hearty seasonal vegetable, such as roasted turnips, as well as something green, like sauteed kale.

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Tom’s Kitchen: Wine-Braised Beef Short Ribs

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Why the Government Should Pay Farmers to Plant Cover Crops

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Globally, 2012 will likely rank as one of the ten hottest in recorded history, The New York Times reports. If it does, “it will mean that the 10 warmest years on record all fell within the past 15 years, a measure of how much the planet has warmed.” Here in the US, last year was far and away the hottest ever on record. In other words, climate change is no longer a theory or a model or an abstract worry involving future generations. It’s happening, now—and if you want to see its likely effect on farming, look at the breadbasket state of Kansas, where the same prolonged drought that reduced corn and soy yields is now pinching the winter wheat crop, as I wrote a few days ago. On Wednesday, the UDSA declared much of the wheat belt a disaster area because of the drought’s effect on the crop.

What would a farming system designed to meet the challenge of climate change look like? US policymakers have bought themselves time to consider that question. Since the Great Depression, US farm policy has been governed by five-year plans known as farm bills, which shape the agricultural landscape through a set of government-funded incentive programs. The previous farm bill expired last year, and Congress failed to come up with a new one, instead patching a one-year, modified extension of the old one to the fiscal cliff deal. That means 2013 will be another farm bill year; another opportunity to come up with climate-ready farm policy.

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Why the Government Should Pay Farmers to Plant Cover Crops

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Ozone From Biofuel Farms Could Cause Thousands of Deaths a Year

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Biofuels have a variety of drawbacks. They jack up the price of food, making life hell for the urban poor in the global south, while also pushing small-scale farmers off of land and into misery, as I wrote yesterday. They may contribute to, rather than reduce, greenhouse gas emissions, because they provide incentives to plow up carbon-trapping old forests.

Turns out they can also make you sick. Certain fast-growing trees used for biofuels in Europe can also “increase concentrations of ground-level ozone, resulting in millions of tonnes in crop losses and an additional 1,385 deaths per year,” reports Climate News Network, teasing out the results of a recent study (abstract here) by a UK research team published in Nature Climate Change. The ozone in the upper atmosphere is a good thing—it “filters out dangerous ultra-violet sunlight.” But at ground level, ozone is a “toxic irritant” that makes people wheeze and can be life-threatening for vulnerable populations. When it wafts into fields where crops are grown, ground-level ozone also “causes more damage to plants than all other air pollutants combined,” the US Department of Agriculture reports.

The authors offer a few solutions to mitigate the problems they identify:

The Lancaster team suggest that the unwelcome consequences could be mitigated by the choice of coppice trees genetically engineered to reduce isoprene emissions—one genetically modified poplar has already been tested under laboratory conditions—or by the choice of other biofuel crops such as grasses, or by shifting biofuel production away from densely populated areas and highly productive cereal land.

I have another suggestion: Use farmland to grow food, and focus energy policy on techniques that benefit the environment: conservation, efficiency, and green technologies like wind and solar.

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Ozone From Biofuel Farms Could Cause Thousands of Deaths a Year

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