What's Up with the Ozone Layer?

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Scientists have observed two new developments in the ozone layer that I briefly summarize in this video.

The two papers are this:

Record low ozone values over the Arctic in boreal spring 2020
Martin Dameris et al.
Atmos. Chem. Phys., 21, 617–633, 2021
https://acp.copernicus.org/articles/21/617/2021/acp-21-617-2021-discussion.html

And this:

Analysis of recent lower stratospheric ozone trends in chemistry climate models
Simone Dietmüller, Hella Garny, Roland Eichinger, and William T. Ball
https://acp.copernicus.org/preprints/acp-2020-947/

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0:00 Intro
0:23 Background: Ozone and the Ozone Layer
1:56 News 1: Ozone Hole over the North Pole
4:41 News 2: Ozone layer recovery slower than expected
7:05 What does it mean?
9:26 Sponsor Message

Видео What's Up with the Ozone Layer? канала Sabine Hossenfelder