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  1. #1
    countybear's Avatar
    countybear is offline BDRT - Baby Daddy Removal Team
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    Should burping worms be included in Cap and Trade?



    Burping Worms May Contribute to Climate Change

    Aquatic animals that feed on lake and stream bottom sediments burp out small amounts of nitrous oxide, a potent greenhouse gas, a new study finds.

    While the biological emissions from these critters pales in comparison to the nitrous oxide emitted by fossil fuel burning, their contribution could increase as more and more nitrogen-rich fertilizer runs off into lakes, streams and seas, the authors of the study said.
    Nitrous oxide (N2O) is more commonly known to anyone who has sat in the dentist's chair as laughing gas.

    In the atmosphere it is a powerful greenhouse gas, packing about 310 times the punch as the same weight of carbon dioxide (though carbon dioxide is still the bigger driver because there is much more of it).

    Studies of soil-dwelling earthworms had showed that the creepy crawlies emitted nitrous oxide because of the nitrogen-converting microbes they gobbled up into their guts with every mouthful of soil.

    Peter Stief, of the Max Planck Institute for Marine Microbiology in Germany, and his colleagues noticed that no one had ever looked for similar nitrous oxide emission in aquatic animals, so that's where they turned their attention.

    "We were looking for an analogy in the aquatic system," Stief said.

    The researchers found that in a variety of aquatic environments, animals that dug in the dirt for their food did indeed emit nitrous oxide, thanks to the bacteria in the soil they ate, which "survive surprisingly well in the gut environment," Stief told LiveScience.
    The team's findings are detailed in the March 2 issue of the journal Proceedings of the National Academy of Sciences.

    The nitrous oxide given off by these so-called filter feeders has little global impact of course.

    "We're not expecting a new catastrophe," Stief said.

    But on the scale of an individual lake or stream, "the difference can be huge," Stief said as much as an 8-fold difference between situations where animals were and were not present.

    Nitrate from fertilizer runoff can exacerbate the situation because those bacteria that end up in animal guts love to feast on it.

    Increased nitrogen levels can also favor algal blooms, which suck up all the oxygen in the water. This could cause a shift in the ecosystems subjected to runoff, favoring the species that are more tolerant to oxygen depletion, which also tend to be the nitrous oxide emitters.

    Because these species tend to be at the bottom of the food chain, any shifts in species abundance can cascade up the food chain, Stief noted.
    The findings don't mean that animals will be to blame for any future increases in nitrous oxide, because the pollution would fuel their emissions ultimately comes from humans.
    "We have not discovered that the animals represent an environmental problem," Stief said.

    The research was supported by a European Union Marie Curie Fellowship, the Danish Research Agency and Aarhus University, Denmark.

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  2. #2
    pgg's Avatar
    pgg
    pgg is offline Damnit, I'm hungry again.
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    Thats it. I'm fed up. We need to ban these bottom feeders, we need to ban cows, and we need to ban loud mouth politicians.
    'Political Correctness is a doctrine fostered by a
    delusional, illogical liberal minority, and rabidly
    promoted by an unscrupulous mainstream media, which
    holds forth the proposition that it is entirely
    possible to pick up a turd by the clean end!'

    A fear of weapons is a sign of retarded sexual and emotional maturity. Sigmund Freud

  3. #3
    Jenna's Avatar
    Jenna is offline sheep
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    The worms should have to pay a fine every time they make an emission. That could balance the deficit!

  4. #4
    Ryan's Avatar
    Ryan is offline Bust a move
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    Quote Originally Posted by Jenna View Post
    The worms should have to pay a fine every time they make an emission. That could balance the deficit!

    As long as I don't have to pay a fine everytime I make a greenhouse gas emission, I am good. That would suck after Mexican food especially
    "The inherent vice of Capitalism is the unequal sharing of its blessings; the inherent vice of Socialism is the equal sharing of its miseries." -Winston Churchill

 

 

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