Mario Molina, Nobel laureate who revealed threat to ozone layer, dies at 77 https://www.washingtonpost.com/local/obituaries/mario-molina-nobel-laureate-who-revealed-threat-to-ozone-layer-dies-at-77/2020/10/08/621f03f8-095f-11eb-9be6-cf25fb429f1a_story.html