UM-Bot Posted July 9, 2018 #1 Share Posted July 9, 2018 (IP: Staff) · Investigators have finally determined the source of the unexplained rise in atmospheric levels of CFC-11. https://www.unexplained-mysteries.com/news/319530/mystery-source-of-ozone-depleting-cfc-found 1 1 Top Link to comment Share on other sites More sharing options...
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