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Mar 21, 2017 at 5:54 comment added airhuff @MaxW , I agree with your last sentence 110%. But I remain unconvinced that any significant CFC mediated ozone depletion has taken place at the low-mid latitudes and that the few percent decrease in ozone that has been observed is due to diffusion towards the poles.
Mar 20, 2017 at 19:24 comment added MaxW @airhuff - No, the ozone is worse in the presence of polar stratospheric clouds, but not only there. See section "Midlatitude regions" on page 44 of pdf acd-ext.gsfc.nasa.gov/Documents/O3_Assessments/Docs/WMO_2010/… So much worse over poles and hence my canary in a coal mine analogy. A massive ozone depletion is a disaster that good science prevented.
Mar 20, 2017 at 18:08 comment added airhuff @MaxW , CFC's only deplete ozone in the presence of polar stratospheric clouds, which are only found to any significant degree at the poles, mainly the much colder southern pole. From there, it's pretty much just like a container of gas with less ozone on one side, so diffusion from the "ozone rich" regions of the occurs and ozone is ultimately depleted from the entire container, though it's always less at the depletion source. Oh, and good seeing you here ;)
Feb 11, 2017 at 20:03 comment added jamesqf The atmosphere mixes globally, no? So if ozone is destroyed during the Antarctic night, ozone-depleted air will blow out of the 'hole', new air will blow in and have its ozone destroyed in turn. Thus it woud seem that this should eventually reduce global ozone.
S Feb 11, 2017 at 10:23 history suggested JeopardyTempest CC BY-SA 3.0
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Feb 11, 2017 at 8:29 review Suggested edits
S Feb 11, 2017 at 10:23
Feb 9, 2017 at 14:42 answer added Felix Leung timeline score: 2
Jan 26, 2017 at 23:58 comment added MathWA wenti I think so, but the effect is most in Antarctic.
Jan 26, 2017 at 5:43 comment added MaxW Chloroflurocarbons deplete ozone world wide. The effect is just worse over Antarctica. So Antarctica is like the canary in the coal mine warning of an impending disaster.
Jan 25, 2017 at 15:26 comment added arkaia Related: earthscience.stackexchange.com/questions/5162/…
Jan 25, 2017 at 13:44 comment added Penguin9 Yes. of course.
Jan 25, 2017 at 12:45 review First posts
Jan 25, 2017 at 15:26
Jan 25, 2017 at 12:40 history asked someonesomewhere CC BY-SA 3.0