Talk:Polar vortex
This article was the subject of a Wiki Education Foundation-supported course assignment, between 21 January 2019 and 3 May 2019. Further details are available on the course page. Student editor(s): Sj.hws.arth.
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This article was the subject of a Wiki Education Foundation-supported course assignment, between 7 January 2019 and 9 April 2019. Further details are available on the course page. Student editor(s): Mieleveronica, Westbrookholly.
Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 06:49, 17 January 2022 (UTC)
What does "large scale" mean? The size of a typical Kansas tornado, ten times as large, a hundred? --Vaughan Pratt (talk) 19:18, 20 July 2008 (UTC)
Since the role of CFCs and other factors is still uncertain, some references in this section would be useful. As would fair representation of research showing other factors influencing the ozone 'hole'. — Preceding unsigned comment added by 174.61.210.61 (talk) 22:31, 29 September 2011 (UTC)