Mario J. Molina was a prominent scientist known for his groundbreaking research in atmospheric chemistry. His work focused particularly on the effects of chlorofluorocarbons (CFCs) on the ozone layer. Molina, along with Rowland, discovered that CFCs could deplete the ozone layer, leading to increased ultraviolet radiation reaching the Earth, which raised concerns about global health and environmental impacts. This discovery played a pivotal role in the global awareness of environmental issues, eventually leading to international agreements such as the Montreal Protocol. Molina's contributions extended beyond just ozone depletion; he was involved in various studies related to air pollution and climate change. His research helped shape our understanding of the chemical processes that affect our atmosphere. Throughout his career, he received numerous awards for his scientific achievements, including the Nobel Prize in Chemistry in 1995. Molina was not only a researcher but also an advocate for science education and public policy aimed at addressing environmental challenges. In addition to his scientific pursuits, Molina was dedicated to mentoring the next generation of scientists. He served as a professor at prestigious institutions, including the University of California, San Diego, where he inspired students with his passion for science and dedication to environmental advocacy. Molina's legacy continues to influence environmental policies and efforts to combat climate change, making him a significant figure in both science and public policy. Mario J. Molina was a prominent scientist known for his groundbreaking research in atmospheric chemistry. His work focused particularly on the effects of chlorofluorocarbons (CFCs) on the ozone layer. Molina, along with Rowland, discovered that CFCs could deplete the ozone layer, leading to increased ultraviolet radiation reaching the Earth, which raised concerns about global health and environmental impacts. This discovery played a pivotal role in the global awareness of environmental issues, eventually leading to international agreements such as the Montreal Protocol. Molina's contributions extended beyond just ozone depletion; he was involved in various studies related to air pollution and climate change. His research helped shape our understanding of the chemical processes that affect our atmosphere. Throughout his career, he received numerous awards for his scientific achievements, including the Nobel Prize in Chemistry in 1995. Molina was not only a researcher but also an advocate for science education and public policy aimed at addressing environmental challenges. In addition to his scientific pursuits, Molina was dedicated to mentoring the next generation of scientists. He served as a professor at prestigious institutions, including the University of California, San Diego, where he inspired students with his passion for science and dedication to environmental advocacy. Molina's legacy continues to influence environmental policies and efforts to combat climate change, making him a significant figure in both science and public policy.