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Organic agriculture can feed the world

That’s the conclusion reached by the authors of this study based on 293 examples in the developing and developed world.The authors also conclude that yields in the developing world are higher for organic agriculture than for conventional agriculture. Why? Well, since the paper is not open access, I can’t read it, or critique it, I’ll have to wait to get to the library before I can download it. But, maybe it’s because organic agriculture tends to be more labor intensive than conventional agriculture as practised by the developed world, and in the developing world, labor is cheap!

Anyway, this is a good news study and should be examined a little more thoroughly.

CJO – Abstract – Organic agriculture and the global food supply

The principal objections to the proposition that organic agriculture can contribute significantly to the global food supply are low yields and insufficient quantities of organically acceptable fertilizers. We evaluated the universality of both claims. For the first claim, we compared yields of organic versus conventional or low-intensive food production for a global dataset of 293 examples and estimated the average yield ratio (organic:non-organic) of different food categories for the developed and the developing world. For most food categories, the average yield ratio was slightly 1.0 for studies in the developing world. With the average yield ratios, we modeled the global food supply that could be grown organically on the current agricultural land base. Model estimates indicate that organic methods could produce enough food on a global per capita basis to sustain the current human population, and potentially an even larger population, without increasing the agricultural land base. We also evaluated the amount of nitrogen potentially available from fixation by leguminous cover crops used as fertilizer. Data from temperate and tropical agroecosystems suggest that leguminous cover crops could fix enough nitrogen to replace the amount of synthetic fertilizer currently in use. These results indicate that organic agriculture has the potential to contribute quite substantially to the global food supply, while reducing the detrimental environmental impacts of conventional agriculture. Evaluation and review of this paper have raised important issues about crop rotations under organic versus conventional agriculture and the reliability of grey-literature sources. An ongoing dialogue on these subjects can be found in the Forum editorial of this issue.

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    Priority and Toxic Chemical Reduction | Resource Conservation Challenge | US EPA

    Priority and toxic chemicals make up a fairly limited volume, yet potentially hazardous portion of the nation’s waste stream. We are working to eliminate or reduce priority chemicals and other chemicals of national concern from commercial products, waste streams, and industrial releases through pollution prevention, waste minimization, and recycling/reuse.The 31 priority chemicals are federal priorities because they are persistent, bioaccumulative, and highly toxic. We’re focusing on reducing priority and toxic chemicals to better protect human health and the environment.

    By substituting or eliminating certain chemicals in their manufacturing processes, companies produce less waste and thus lower their waste disposal costs. Our goal is to substantially reduce the volume and toxicity of priority chemicals in waste by asking companies to voluntarily:

    • Substitute safer alternatives when they can;
    • Minimize the amount of priority chemicals they use, if they can’t substitute for them;
    • Maximize their recycling efforts;
    • Practice cradle-to-cradle chemical management; and
    • Design products to minimize exposure to, and release of, priority chemicals during manufacturing and use.

    Sounds good, and Worldchanging has more:

    But nowhere near the progress some companies are making on their own in cleaning up toxic emissions — not simply to be good guys, but to reduce their costs, liabilities, and exposure to activist and shareholder pressures. And, in some cases, to meet their customers’ growing demands for less-toxic or nontoxic alternatives to business as usual.

    Read the whole post, which sounds ambivalent about the scheme. The idea is Environmental Good Sense 101, use less, or none at all, practice cradle to grave economics and minimize exposure. Simple stuff, huh. The biggest problem, however, is that by setting limits on a voluntary basis, you always run the risk of setting the bar too low, and then indulging in relentless and pointless self congratulation about how the “market” solved everything, and how rules are so, well, 1970s?

    you need a good mix of

    1. Regulation, which sets a minimum, health based bar
    2. Flexibility to the business on how to achieve their targets
    3. Market systems to trade emission credits, etc
    4. Voluntary industry-government initiatives like the one above
    5. Relentless citizen activism that forces governments/business to act
    6. Community outreach and education so consumers can make informed choices
    7. Costing mechanisms that actually reflect free market efficiencies (no stupid subsidies, accurate costing of “externalities”, etc. )

    Yeah, this does not fit neatly into the Mano a Mano, you’re with us/you’re against us false dichotomy of choice that seems to beset almost every policy debate (environmental or otherwise). It seems that you never have to do one or the other, but a bit of both, or all of them at the same time.

    In the meanwhile, the voluntary program will work, but only in areas in specific instances where it is to a company’s advantage.

    BTW, I think that good old fashioned regulation in Europe – See Reach and many many more existing regulations, such as this one for PCBs and Dioxins which I know a little too much about, have a little more to do with American companies reducing POP levels that they care to admit!

  • USGS Releases Study on US Well Water

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    ScienceDaily: Chemical Quality Of Self-Supplied Domestic Well Water

    Since the water quality of domestic wells is not federally regulated or nationally monitored, this study provides a unique, previously nonexistent perspective on the quality of the self-supplied drinking water resources used by 45 million Americans in the United States. This national reconnaissance study is based on a compilation of existing data from a very large number of wells sampled as part of multiple USGS programs.

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    gwmr_89_f4.gif
    Well (no pun intended!), looky here, but arsenic levels in well water exceed EPA Maximum Contaminant Levels (MCLs) more than 10% of the time. If, and this is a big if, you extrapolate these results to the whole country, as much as 5 million people may be exposed to higher than allowed arsenic levels. Arsenic is a notorious contaminant with an MCL of 0.01 mg/L, down a factor of 5 as of January 2006 due to data that indicates effects at even lower doses.

    If I drank well water, I would get it tested for arsenic.

    gwmr_89_f1.png
    Most of the results are from the North East, which means that outside research circles (and behind subscription walls), groundwater arsenic levels could be a significant problem that not too many people are aware of.

    All figures are from the paper.

    Reference

    Focazio, Michael J., Tipton, Deborah, Dunkle Shapiro, Stephanie & Geiger, Linda H. (2006) The Chemical Quality of Self-Supplied Domestic Well Water in the United States. Ground Water Monitoring & Remediation 26 (3), 92-104. doi: 10.1111/j.1745-6592.2006.00089.x

  • EPA Faces major Challenges, and no money

    At a time when this country faces major environmental challenges, including catching up with the rest of the developed world on global warming, the agency that would have to do the heavy lifting on environmental regulation ain’t getting the money to do diddley squat. A 25% cut in inflation adjusted terms over 4 years is huge, especially considering that the EPA was not a cushy agency even before that.

    ES&T Online News: Budget cuts increasingly damaging to EPA

    Support for research and development at EPA has declined by 25% in inflation-adjusted terms between the recent high point in 2004 and the proposed 2008 budget, according to figures from the American Association for the Advancement of Science.

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    The scientists’ difficulties are likely to increase if the proposals in a June 2006 memo from Lyons Gray, EPA’s chief financial officer, are carried out. The memo, which was released by the advocacy group Public Employees for Environmental Responsibility (PEER) directs ORD to reduce laboratory physical infrastructure costs by a minimum of 10% by 2009 and another 10% by 2011. The memo suggests that this will require closing, relocating, and consolidating EPA’s laboratory and field locations, as well as reducing or relocating staff. ORD chief George Gray told Congress that EPA does not intend to shut down any labs or get rid of any scientists during the current administrator’s tenure.

    The U.S will pay the price for this deliberate destruction of government infrastructure. You won’t see it now, it will be a little more apparent in a few years.

  • Judges Overturn Bush Bid to Ease Pollution Rules – New York Times

    smokestacks.jpgThis is the NY Times headline, not mine!

    Judges Overturn Bush Bid to Ease Pollution Rules – New York Times

    But on Friday, the court said the agency went too far in 2003 when it issued a separate new rule that opponents said would exempt most equipment changes from environmental reviews — even changes that would result in higher emissions.

    With a wry footnote to Lewis Carroll’s “Through the Looking Glass,” the court said that “only in a Humpty-Dumpty world” could the law be read otherwise.

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    The winners this time —more than a dozen states, including New York and California and a large group of environmental organizations — hailed the decision as one of their most important gains in years of litigation, regulation and legal challenges under the Clean Air Act.

    The provision of the law at issue, the “new source review” section, governs the permits required at more than 1,300 coal-fueled power plants around the country and 17,000 factories, refineries and chemical plants that spew millions of tons of pollution into the air each year.

    The proposed rule would have allowed powerplants to avoid putting new controls in as long as the cost of equipment did not exceed 20% of the replacement cost of the plant. Fuzzy math, anyone! This would have let to major incentives to not build new plants using cleaner technology, but keep the “grandfathers” running. A lot of the old plants were exempted from some of the strict controls by being grandfathered into the act. Well, call me cruel, but grandfathers eventually die! I thought of this proposed rule as the “Bionic Grandpa” provision! Glad that the courts did not like it.

  • | |

    Feds punt on Bisphenol A

    By studiously ignoring all the subtle hormone disruption effects of bisphenol A and concentrating on easily observable neurological effects, the CERHR essentially does the industry’s bidding.

    Some risk linked to plastic chemical – Los Angeles Times

    A federal panel of scientists concluded Wednesday that an estrogen-like compound in plastic could be posing some risk to the brain development of babies and children.

    Bisphenol A, or BPA, is found in low levels in virtually every human body. A component of polycarbonate plastic, it can leach from baby bottles and other hard plastic beverage containers, food can linings and other consumer products.

    Culminating months of scientific debate, the decision by the 12 advisors of the Center for the Evaluation of Risks to Human Reproduction — part of the National Institutes of Health — is the first official, government action related to the chemical. Their recommendation will be reviewed for a federal report that could lead to regulations restricting one of the most used chemicals.

    The scientists ranked their concerns about BPA, concluding they had “some concern” about neurological and behavioral effects in fetuses, infants and children, but “minimal” or “negligible” concern about reproductive effects. The findings put the panel roughly in the middle — between the chemical industry, which has long said there is no evidence of danger to humans, and the environmental activists and scientists who say it is probably harming people.

    For a detailed look at how bisphenol research has been corrupted by industry sponsored “focused counter research” – where the goal is to show no effects and the experiment is tiled to ensure this goal, read this excellent article in the The Public Library of Science Biology Open Source Journal. Note, because it is Open Access, you can actually read it without selling a kidney! Some highlights…

    The moment we published something on bisphenol A, the chemical industry went out and hired a number of corporate laboratories to replicate our research. What was stunning about what they did,” vom Saal says with a mix of outrage and bemused disbelief, “was they hired people who had no idea how to do the work. Each of the members of these groups came to me and said, ‘We don’t know how to do this, will you teach us?’”

    More…

    The HCRA report, commissioned before Schwartz’s tenure, concluded that “the weight of the evidence for low-dose effects is very weak” [15]. Industry groups hailed the report as a comprehensive review by independent experts and quickly disseminated its findings. Yet the “comprehensive” report reviewed just 19 of 47 studies available in April 2002, and when it was published more than two years later, three panelists asked not to be listed as authors.

    What the hell, just read the whole article, especially the bit about the Harvard Center for Risk Analysis and its well documented industry shillness.

    The key to understanding bisphenol research is to realize that it is a hormone disruptor that works at low doses. At high doses, normal toxicological testing doses that is, it floods the hormone receptors and slows down the receptor pathways. So, the usual technique of testing in rats and mice at high doses and extrapolating will not work.