Stratospheric Ozone

https://www.esrl.noaa.gov/gmd/dv/site/site.php?code=BIS

https://disc.gsfc.nasa.gov/ozone/additional/mission/ground-based

http://cdiac.ornl.gov/oceans/CFC_ATM_Hist2015.html

https://earthobservatory.nasa.gov/Features/Tango/

https://www.esrl.noaa.gov/gmd/about/ozone.html

http://people.oregonstate.edu/~muirp/stratozo.htm#uvbeff

https://www.esrl.noaa.gov/gmd/grad/neubrew/ProductDisplays.jsp#o3timeseries

http://www.ozonelayer.noaa.gov/data/other_current.htm

https://www.esrl.noaa.gov/gmd/hats/publictn/elkins/cfcs.html

http://www.theozonehole.com/cfc.htm