Pesticide makes rat grandsons unattractive.

Byoliveridley

Yes, strained headline!

A Toxic Hand-Me-Down — Balter 2007 (327): 1 — ScienceNOW

Environmental contamination can cause cancer and birth defects. Of particular concern are a group of toxic chemicals called endocrine-disrupters, which interfere with reproductive hormones and may cause sterility. A new study, published online this week in the Proceedings of the National Academy of Sciences, suggests that these chemicals can change reproductive behavior as well, and that these behavioral changes can be passed on from parents to offspring. If correct, these changes could alter the course of evolution by giving natural selection new targets to act on.

In 2005, a team led by reproductive biologist Michael Skinner of Washington State University in Pullman reported in Science that the fungicide vinclozolin, an endocrine-disrupter used to spray vineyards and other crops, causes fertility defects in the male offspring of female rats treated with the chemical. These defects are, in turn, passed down to the males of subsequent generations. The toxin did not appear to be altering gene sequences; instead, Skinner and colleagues found, vinclozolin was somehow causing other chemical groups to latch onto certain genes, changing their expression (Science, 3 June 2005, p. 1391). The phenomenon is known as epigenetic inheritance. Last year, Skinner’s group identified 15 epigenetically altered DNA sequences in the sperm of the vinclozolin-treated rats

More signs of intergenerational effects of low levels of endocrine disruptors. I had blogged recently about Bisphenol A having intergenerational effects (where exposure to a chemical agent causes consequences for offspring and off off spring, etc).

It’s still early, but remember Children of Men (good movie, see it).

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    Hog Factories are Evil Part 1232

    Byoliveridley

    This rather interesting study tracks the movement and evolution of antibiotic resistance from hog cesspools (lagoons) caused by factory production (hog farming) of pig meat. You see, in order to pack that many hogs together and not cause them to keel over and die from disease, they have to be pumped full of antibiotics. Guess where the antibiotics end up? In their “refuse”.

    As always, I leave you with The Meatrix if you want to know more about factory farming.

    Antibiotic Resistance Tracked From Hog Farms to Groundwater

    The routine use of antibiotics in swine production can have unintended consequences, with antibiotic resistance genes sometimes leaking from waste lagoons into groundwater, according to new research from the University of Illinois.

    Researchers report that some genes found in hog waste lagoons are transferred, “like batons,” from one bacterial species to another. This migration across species and into new environments sometimes dilutes, and sometimes amplifies, genes conferring antibiotic resistance, they say.

    The new report, in the August issue of “Applied and Environmental Microbiology,” tracks the passage of tetracycline resistance genes from hog waste lagoons into groundwater wells at two Illinois swine facilities.

    Tetracycline is widely used in swine production. It is injected into the animals to treat or prevent disease, and is often used as an additive in hog feed to boost the animals’ growth.

    Its near-continuous use in some hog farms promotes the evolution of tetracycline-resistant strains in the animals’ digestive tracts and manure.

    This is the first study to take a broad sample of tetracycline resistance genes in a landscape dominated by hog farming, said principal investigator R.I. Mackie, a professor in the University of Illinois-Champaign department of animal sciences and an affiliate of the Institute for Genomic Biology.

  • E.P.A. Says 17 States Can’t Set Emission Rules for Cars

    Byoliveridley

    Shameful. I did not blog much, or anything about the recently passed energy bill because I thought it was a watered down compromise that subsidized coal, oil and ethanol industries at the expense of renewable energy, public transportation and public health. But these are the consequences of passing such a bill, it allows the EPA to claim that something major has already been done, so noting needs to be done any more .

    The E.P.A. administrator, Stephen L. Johnson, said the proposed California rules were pre-empted by federal authority and made moot by the energy bill signed into law by President Bush on Wednesday. Mr. Johnson said California had failed to make a compelling case that it needed authority to write its own standards for greenhouse gas emissions from cars and trucks to help curb global warming.

    E.P.A. Says 17 States Can’t Set Emission Rules for Cars – New York Times

    This is truly absurd. The energy bill does not address CO2 emissions. California has used its right to set stronger standards many times in the past, and nothing in this bill preempts this right.

    I guess this is Supreme Court bound, where that one man decision making machine Justice Kennedy will no doubt set the standards for this country.

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  • Plastic Bag Use – Money Talks

    Byoliveridley

    In 2002, Ireland passed a tax on plastic bags; customers who want them must now pay 33 cents per bag at the register. There was an advertising awareness campaign. And then something happened that was bigger than the sum of these parts.Within weeks, plastic bag use dropped 94 percent. Within a year, nearly everyone had bought reusable cloth bags, keeping them in offices and in the backs of cars. Plastic bags were not outlawed, but carrying them became socially unacceptable — on a par with wearing a fur coat or not cleaning up after one’s dog.

    Motivated by a Tax, Irish Spurn Plastic Bags – New York Times

    Turns out that you can swiftly alter habits, attitudes, perception and behavior by charging people 33 cents per bag! Plastic bags are a convenience only because they are free.

    Also, if you read the entire article, you will realize that ad-hoc, voluntary, or piecemeal approaches by individual retailers, cities or states will not make as much of an impact as a national policy.

    All hail Ireland!

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    Al Franken is good for health

    Byoliveridley

    You know what's in your food and many beauty products. Senator Al Franken wants to make it possible to see exactly what's in your household cleaning products as well.The Minnesota Democrat introduced a bill in the U.S. Senate requiring producers to fully disclose all ingredients on their product labels, including those suspected of causing long-term harm. Currently the warnings on cleansers are designed to prevent immediate harm due to swallowing, splashing in eyes or other unintended uses.

    via Kare 11

    It would seem common sense to have information on labels, especially on the harsh and powerful chemicals we use every day. You may not understand what they mean, or how to pronounce the chemical names, but you don’t have to! Organizations such as the Environmental Working Group have extensive information on common high volume chemicals so people can match what they see on the label with what they would like to avoid.

    But it is not the law of the land in the US, or Canada for that matter. Al Franken, comedian, talk show host and an intelligent man turned senator would like to change that in the US. Of course, we in Canada would benefit as well.

    Chemical manufacturers aren’t having any of this.

    There’s always a concern about turning labels into encyclopedias,” Brian Sansoni of the Soap and Detergent Association, in Washington, D.C., told KARE Tuesday.

    Pretty insulting, claiming that your consumer does not like encyclopedias, or is not capable of reading and googling.

    Information helps drive consumers to safer alternatives. If you see two cleaners, both of which claim to work equally well, a quick read of the ingredients will drive you to the safer (or simpler) choice. Clearly, sale by obfuscation is the preferred marketing strategy here.

    If I were American, I would call my senator/congressperson and ask them to support Al Franken.

  • Goodbye Conventional Coal, for now.

    Byoliveridley

    In a move that signals the start of the our clean energy future, the Environmental Protection Agency’s Environmental Appeals Board EAB ruled today EPA had no valid reason for refusing to limit from new coal-fired power plants the carbon dioxide emissions that cause global warming. The decision means that all new and proposed coal plants nationwide must go back and address their carbon dioxide emissions.

    via Sierra Club: Email – Ruling: Coal Plants Must Limit CO2

    This is huuuuuuuuuuge.