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posted by martyb on Thursday May 17 2018, @04:42AM   Printer-friendly
from the sunscreen++ dept.

Scientists Detect Possible Illegal Emissions of CFC-11

Mysterious rise in emissions of ozone-damaging chemical

Scientists have detected an unexpected rise in atmospheric levels of CFC-11, a chlorofluorocarbon (CFC) highly damaging to the ozone layer. Banned by the Montreal Protocol in 1987, CFC-11 was seen to be declining as expected but that fall has slowed down by 50% since 2012.

Researchers say their evidence shows it's likely that new, illegal emissions of CFC-11 are coming from East Asia. These could hamper the recovery of the ozone hole and worsen climate change.

Also at NYT and Bloomberg.

An unexpected and persistent increase in global emissions of ozone-depleting CFC-11 (DOI: 10.1038/s41586-018-0106-2) (DX)

Someone, Somewhere, is Making a Banned Chemical that Destroys the Ozone Layer

https://www.washingtonpost.com/news/energy-environment/wp/2018/05/16/someone-somewhere-is-making-a-banned-chemical-that-destroys-the-ozone-layer-scientists-suspect/

Emissions of a banned, ozone-depleting chemical are on the rise, a group of scientists reported Wednesday, suggesting someone may be secretly manufacturing the pollutant in violation of an international accord.

Emissions of CFC-11 have climbed 25 percent since 2012, despite the chemical being part of a group of ozone pollutants that were phased out under the 1987 Montreal Protocol.


Original Submission #1Original Submission #2

 
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  • (Score: 3, Interesting) by kazzie on Thursday May 17 2018, @09:25AM (5 children)

    by kazzie (5309) Subscriber Badge on Thursday May 17 2018, @09:25AM (#680666)

    TFS #1:

    CFC-11 was seen to be declining as expected but that fall has slowed down by 50% since 2012

    TFS #2:

    Emissions of CFC-11 have climbed 25 percent since 2012

    So the level of CFC-11 in the atmosphere is still dropping, but at a slower rate than it 2012. The reason for the slower rate is that emission of new CFC-11 have increased over the same period.

    Did I get that right?

    Starting Score:    1  point
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  • (Score: 1) by higuita on Thursday May 17 2018, @06:48PM

    by higuita (2465) on Thursday May 17 2018, @06:48PM (#680828)

    yes

  • (Score: 2) by DeathMonkey on Thursday May 17 2018, @09:37PM (3 children)

    by DeathMonkey (1380) on Thursday May 17 2018, @09:37PM (#680900) Journal

    Re:Lies, Damn Lies, and Statisitcs

    Quantifying a rate of change is neither a lie nor is it statistics.

    • (Score: 2) by kazzie on Friday May 18 2018, @07:30AM (2 children)

      by kazzie (5309) Subscriber Badge on Friday May 18 2018, @07:30AM (#681058)

      Sorry, I don't know any comparable quotes for unclear or confusing use of rates of change. Got any to share?

      • (Score: 2) by DeathMonkey on Friday May 18 2018, @03:21PM (1 child)

        by DeathMonkey (1380) on Friday May 18 2018, @03:21PM (#681192) Journal

        Lies, Damn Lies, and Calculus?

        • (Score: 2) by kazzie on Sunday May 20 2018, @07:12AM

          by kazzie (5309) Subscriber Badge on Sunday May 20 2018, @07:12AM (#681802)

          I'm not sure I rate that one.