| |

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.

Similar Posts

  • The Waxman cometh for Alberta Oil Sands

    Byoliveridley

    Representative Henry A. Waxman of California ousted Representative John D. Dingell of Michigan from his post as chairman of the influential Committee on Energy and Commerce on Thursday, giving President-elect Barack Obama an advantage in his plans to promote efforts to combat global warming.

    via Longtime Head of House Energy Panel Is Ousted – NYTimes.com

    Why is this big news for Canada? Because Waxman would like to ensure that the US not allow any alternative fuel that has a bigger CO2 lifecycle impact than the conventional fuel it replaces to be used by the US government, as enshrined in US law.

    I don’t foresee a bright future for this dirty Oil Sands, with oil now dipping below $50 a barrel, and money short, even the economics (without any carbon pricing) do not make sense. We are probably 4-5 years away from commercial plugin hybrids. In the medium term, gasoline consumption is going to decline, and there’s nowhere we can sell this oil to if the US drops out as a buyer.

  • |

    Bye Bye, Bisphenol A

    Byoliveridley

    Canada is expected to formally declare on Saturday that the controversial chemical bisphenol A (BPA) is a hazardous substance.

    The move will make Canada the first country in the world to put the chemical on a list of toxic substances that will ban the material from being used in such products as baby bottles.

    via CTV.ca | Canada to put BPA on toxic substances list

    Good for Canada. Timing of when cans (the biggest potential source of adult exposure) will be BPA free is up in the air.

  • Today is World Water Day

    Byoliveridley

    World Water Day – World Water Day

    As opposed to every other day when water’s not all that important! But seriously, the site is a good compendium of resources. This year’s theme is coping with scarcity. I remember when Madras had severe water shortages in the late ’80s until a couple of years back. You had to be either very lucky to live in the right neighborhood/rich enough to buy water from private tankers to fill up your water tank. Running water was off and on, we had giant buckets of stored water, it was quite an adventure for me (and a great deal of stress for my parents, of course). Those days still leave a big impression on me. Everytime I leave the tap running for more than 30 seconds, or stand in the shower for longer than necessary, I can hear my mom yelling!

  • Obama to regulate 'pollutant' CO2

    Byoliveridley

    The US government is to regulate carbon dioxide emissions, having decided that it and five other greenhouse gases may endanger human health and well-being. The Environmental Protection Agency EPA announced the move following a review of the scientific evidence.

    via BBC

    Not unexpected, was the long culmination of a series of events resulting from a 2007 Supreme Court verdict.

    Obama is playing the cards right here, using the EPA to ratchet pressure on congress to come up with a carbon pricing scheme, using the EPA as a cautionary tale. If there is anything anti-environmentalists hate more than carbon regulation, it is carbon regulation written by the EPA! Expect a whole lot of lobbying for a cap and trade bill to pass through congress. Aldo expect a lot of back room dealing about offsets, auctions, allowances, words you will be hearing and reading about a lot more.

    Meanwhile, in our great white North, the official silence is deafening. A recent report released by the National Roundtable on the Environment and the Economy speaks very seriously about the urgent need to get a federal Cap and Trade system in place before the US does it for us. Expect nothing to happen unless there is regime change. Even then, as the NY Times points out, provincial resistance to cede control will doom any deal. Ask an Albertan about the National Energy Program!

    In our provincial BC election, carbon pricing is front and centre and has captured quite a bit of attention even south of the border. A post on that will follow sometime this weekend, unless I get distracted, which happens more often than not!

  • |

    Duke Energy and Cliffside

    Byoliveridley

    NC Warn produces a good cheatsheet on Duke Energy‘s deceptions about the Cliffside coal fired power plant.

    For more than a year, Duke Energy has tried to sell the idea that building a large coal-fired power plant near Charlotte would somehow be “good for the environment.” Following the January 29th state approval for construction to begin, the deception increased. By masking the new unit’s pollution behind upgrades already required by state law at an existing Cliffside furnace – and the retirement of four very small units that sit idle most of the time – Duke has misled the public, media and elected leaders into thinking that building a new unit will reduce a range of harmful emissions.

    GreenscamAlert-AMythFactHandout

    To summarize, CO2 emissions are set to increase significantly (factor of 12) if this plant is approved. So, in my book, this is a loser project that does not deserve even consideration. The facts are simple. This country is less than two years away from putting a price on carbon through some kind of carbon cap-trade scheme. All three major candidates for president support some kind of scheme, though McCain does not seem to know if the legislation he supports has an emissions cap or not (typical of him, he does not have any policy expertise or attention to detail whatsoever). So, the ground rules on what constitutes a cost effective option and what represents a major money making boondoggle are going to change very soon. Our state officials, thanks to the miracle of the internets, have all the knowledge to make a decision based on a reality that is coming soon. So, their reluctance to consider CO2 is puzzlingly short sighted. Duke Energy has some vague promises to sequester the carbon. But the fact of the matter is that the technology does not exist, and there’s no guarantee that it will exist any time soon in any cost effective fashion.

    Even if you’re a big believer in the technology advances that will no doubt occur into the future, you have to admit that carbon emissions cannot be free any more. So, unless the federal government puts a price on the carbon, you cannot objectively support a project that will give these emissions away for free. Don’t tell me that Duke Energy will have to pay for the carbon it emits from Cliffside. It may have to, but it will pas all costs along to consumers and win anyway. So the tax payers of North Carolina are stuck with an expensive, dinosaur technology power generating option that is incredibly polluting for years to come. All because the state officials did not have the foresight to wait a year or two.

    You can make the same argument for mercury. The current EPA “plan” for mercury is in tatters as it violates the clean air act. A change in administration (no McCain this time, only Clinton or Obama) is no doubt going to cause a tightening of mercury rules, a long overdue prospect. Why would the state approve a plan that would result in an increase in mercury emissions knowing fully well that federal regulation in this matter is unsettled? What ever happened to the conservative wait and watch approach?

    Blogged with Flock

    Tags: , ,

  • Asia's brown clouds warm planet

    Byoliveridley

    BBC NEWS | Science/Nature | Asias brown clouds warm planet

    Clouds of pollution over the Indian Ocean appear to cause as much warming as greenhouse gases released by human activity, a study has suggested. US researchers used unmanned aircraft to measure the effects of the “brown clouds” on the surrounding area. Writing in Nature, they said the tiny particles increased the solar heating of the lower atmosphere by about 50%.

    The warming could be enough to explain the retreat of glaciers in the Himalayas, the scientists proposed. The clouds contain a mixture of light absorbing aerosols and light scattering aerosols, which cause the atmosphere to warm and the surface of the Earth to cool.

    Wow, I’ll have to read the paper later today to confirm, but when I was doing aerosol work in India back in the mid ’90s, the Indian Ocean cloud was unknown. 1995 through 1998, there was an experiment called INDOEX (my thesis advisor in Bombay participated in the later phases) which first observed this brown cloud. At that time, it was assumed that the light scattering (hence “cooling”) effects of this aerosol would dominate the absorbing (or “heating”) effects, and initial model estimates seemed to agree.

    Turns out that it has a significant warming effect because the soot particles (dark, therefore heat absorbing) predominate. And, you had to measure it.

    For their study, the team of researchers used three unmanned aircraft, fitted with miniaturised instruments that were able to measure aerosol concentrations, soot amounts and the flow of energy from the Sun.

    The crafts flew over the polluted region of the Indian Ocean at varying heights between 500m (1,640ft) and 3,000m (9,840ft).

    “During 18 flight missions, the three unmanned aerial vehicles were flown with a separation of tens of metres or less and less than 10 seconds (apart), which made it possible to measure the atmospheric solar heating rates directly,” they wrote.

    If true, we can reduce the size of this “cloud” by reducing biomass combustion, installing particle controls on power plants, cleaning up other combustion sources, etc, and reduce global warming effects without worrying that this cloud was somehow mitigating temperature rise as previously thought. So, a win-win!