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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.'"

4 of 306 comments (clear)

  1. that sounds like by v1 · · Score: -1, Flamebait

    I read "Christian Science Monitor" and was thinking that's about as sensible as the "MIT Fairy Tailes Quarterly"?

    --
    I work for the Department of Redundancy Department.
  2. oxymoron by Anonymous Coward · · Score: -1, Flamebait

    "Christian Science"...an oxymoron if there ever was one.

  3. Re:Ozone depletion... by Anonymous Coward · · Score: -1, Flamebait

    You see the problem is, well basically, you're a major pussy. They call it laughing gas because people laugh at little lady-boys like you, when you get fucked over by it. No, I take it back. Lady far too masculine of an adjective to describe a twat like you. Man up, bitch, and while you're at it, pull those little nards of yours out from your abdominal cavity. It's not healthy to have 'em crawl back up inside like that.

  4. Re:and natural CO2 production is 20x mans by Anonymous Coward · · Score: -1, Flamebait

    "despite the fact that CO2 hasn't risen above 300ppm in the last 650,000 years. But then we come along and the concentration skyrockets to 380ppm in a matter of decades, which is 35x faster than any increase in the last 650,000 years."

    Wow, 650,000 years is a big number. How long has there been life on the Earth? How high had CO2 skyrocketed before 650,000 years ago?

    This is what I love about you semi-honest "scientists". Why are you limiting your dates to 650,000 years ago? That's not really a long time in the history of this planet.

            http://en.wikipedia.org/wiki/Geologic_temperature_record