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.
An unexpected and persistent increase in global emissions of ozone-depleting CFC-11 (DOI: 10.1038/s41586-018-0106-2) (DX)
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.
(Score: 3, Interesting) by kazzie on Thursday May 17 2018, @09:25AM (5 children)
TFS #1:
TFS #2:
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?
(Score: 1) by higuita on Thursday May 17 2018, @06:48PM
yes
(Score: 2) by DeathMonkey on Thursday May 17 2018, @09:37PM (3 children)
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)
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)
Lies, Damn Lies, and Calculus?
(Score: 2) by kazzie on Sunday May 20 2018, @07:12AM
I'm not sure I rate that one.