1 Ozone loss over Europe in spring
2 ================================
7 J.-U. Grooß et al., `Rückgang des Ozons in der Stratosphäre der Polarregionen`__ (2014)
9 ESKP basics: `Ozonloch`_
11 University of Cambridge: `Die Ozonloch-Tour`_
13 WMO assessment: `Twenty Questions and Answers about the Ozone Layer: 2022 update`__
17 .. __: http://www.warnsignale.uni-hamburg.de/wp-content/uploads/2014/04/grooss.etal.pdf
18 .. __: http://www.esrl.noaa.gov/csd/assessments/ozone/2022/twentyquestions/
19 .. _Die Ozonloch-Tour: http://www.atm.ch.cam.ac.uk/tour/tour_de/index.html
20 .. _Ozonloch: https://www.eskp.d/en/climate-change/research-topic-ozone-935699