E EatTheRich President Nov 4, 2017 #1 https://www.google.com/amp/s/www.washingtonpost.com/amphtml/news/speaking-of-science/wp/2017/11/03/the-earths-ozone-hole-is-shrinking-and-is-the-smallest-its-been-since-1988/
https://www.google.com/amp/s/www.washingtonpost.com/amphtml/news/speaking-of-science/wp/2017/11/03/the-earths-ozone-hole-is-shrinking-and-is-the-smallest-its-been-since-1988/
E EatTheRich President Nov 4, 2017 #2 https://news.nationalgeographic.com/2017/09/montreal-protocol-ozone-treaty-30-climate-change-hcfs-hfcs/
https://news.nationalgeographic.com/2017/09/montreal-protocol-ozone-treaty-30-climate-change-hcfs-hfcs/