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Laughing Gas Is Major Threat To Ozone Layer

Hugh Pickens writes "The Christian Science Monitor reports that according to new research, nitrous oxide, the colorless, sweet-smelling gas with a long history as a medical and dental anesthetic is the next big threat to Earth's protective ozone layer. Its role in destroying ozone has long been recognized, as well as its role as a heat-trapping greenhouse gas but the new study puts nitrous oxide's ability to deplete ozone into numbers comparable to those used for other ozone-depleting gases covered by the 1987 Montreal Protocol. The researchers note that the health of the ozone layer has been improving since the adoption of the protocol and that nitrous oxide looms large today as an artificial destroyer of the ozone layer, in part because the emissions of other harmful chemicals have been so sharply reduced." (Continues.) "Globally, Earth's ozone layer has thinned by 5 to 6 percent since 1980, before CFCs and their ilk came into wide use, according to Akkihebbal Ravishankara, who led the study. He and his colleagues note that 6 percent may appear to be a small number, but it still can lead to significant effects on organisms at Earth's surface. The researchers did not make any policy recommendations in light of their finding. 'It is not for us to gauge how much risk there is,' says Ravishankara. In any event, Ravishankara says, at the moment researchers could not say with confidence 'how much nitrous oxide comes from where.'"

8 of 306 comments (clear)

  1. Ozone depletion... by Anonymous Coward · · Score: 5, Funny

    Turns out it *is* a laughing matter.

  2. Re:Haha by markdavis · · Score: 5, Interesting

    I am quite sure that the use in the medical and racing field are of no threat to the ozone layer. Those are intentionally created sources. The major threat is from general pollution that creates N2O. It is interesting to note, also, that according to Wikipedia, 70% of N2O is created naturally in soil and in/from the ocean.

  3. Re:Haha by Donkey_Hotey · · Score: 5, Insightful

    Of course, the political response will be to pass a bill that places it on a restricted-chemicals list. Industry has a blanket exemption, but no personal/recreational use allowed...

    --
    (There is supposed to be a Sarcmark® here, but my $1.99 check hasn't cleared, yet...)
  4. The sad, empty lives of liberals by Anonymous Coward · · Score: 5, Funny

    Even laughing gas is no fun.

  5. Mislead much? by Perp+Atuitie · · Score: 5, Informative
    Hate to break into the hilarity fest, but the post makes a propaganda point and a lame joke by leaving out the core of the report:

    Nitrous oxide has a range of natural and human-made sources. The largest man-made source is agriculture, where the gas gets emitted after bacteria in soil break down the nitrogen in chemical fertilizers as well as in manure-based fertilizers. Nitrous oxide also comes from burning fossil fuels and from burning biomass.

    Nobody's talking about laughing gas, the anesthetic and geek enhancer. They're talking about artificial and natural shit -- let the new round of hilarity begin.

  6. Re:Oh noes by Anonymous Coward · · Score: 5, Funny

    Dear Planet Earth:

    I'm really sorry for all those whippets I did in college.

    Fixed that for you.

  7. Re:To the Global Warming naysayers by jmerlin · · Score: 5, Insightful

    Any global agenda behind which there is a "political will" is innately corrupt, bullshit, or something that they stand to benefit or gain personally from. Our politicians aren't trying to fix world hunger are they? No? But we care SO MUCH about a prediction that at our current use something which will kill off life on this planet in hundreds of thousands of years?

    You can't honestly stand here and believe that the most corrupt people in the world give a shit about the ozone layer or global warming -- before anything "bad" happens as a result of any man-made climate problems (even if they are true -- though largely unproven), they, their children, and children's great great grandchildren will be all dead and gone. All they care about right now is having power and getting wealthy. "Cap and Trade" is not a constructive tax -- it is destructive. We have technologies other than coal and oil to produce energy, but it is far too expensive to implement privately, we NEED a $1 TRILLION bill to kick-start it, but congress isn't willing to toss that one down, but they'll gladly punish us for using the only cheap and available technology that will keep this country running. Why do you think that is? Because they can sit here and tax the US citizens for using oil, and quite dramatically at that, to get lots and lots of money -- but do you honestly think any of that money will come back to us? $2 Trillion in deficit spending already has gone *poof*... the trillions to come trickling out of our GDP from this tax will disappear just as well, and with absolutely no liability to anyone in congress while they kick back and enjoy the gold linings in their pockets.

    It's just the next buzz-word in politics: "omgs, it might destroy human life on the earth in a few hundred years in a worst case scenario!!"... As far as self-preservation goes, these politicians ought to be worried more about disrespecting and angering the citizens that give them power, after all, if they continue down this path, it'll be the French Revolution all over again, and I'll bring my guillotine with me.

  8. Not a problem. No action required. by Morty · · Score: 5, Insightful

    TFA says that the ozone layer is improving anyway. So it appears that NO, while bad for the ozone layer, is not present in sufficient quantities to actually be causing a problem. No action should be required.

    Or in different terms, it may be the most significant cause of damage to the ozone layer, but it is not a cause of significant damage to the ozone layer.