Mario Molina was a Mexican chemist who was born on March 19, 1943, in Mexico City, Mexico, and died on October 7, 2020. He was known for his work in atmospheric chemistry and his research on the depletion of the Earth's ozone layer.
In 1974, Molina and his colleague, F. Sherwood Rowland, published a paper in the journal Nature in which they warned that the widespread use of chlorofluorocarbons (CFCs) was depleting the Earth's ozone layer. Their research helped lead to the 1987 Montreal Protocol, an international treaty that phased out the production and use of ozone-depleting substances.
Molina received many awards and honors for his work, including the Nobel Prize in Chemistry in 1995, which he shared with Rowland and Paul Crutzen, for their work on atmospheric chemistry, particularly the formation and decomposition of ozone. He also served as a professor of chemistry and biochemistry at the University of California, San Diego, and as a member of the President's Committee of Advisors on Science and Technology under President Barack Obama.a
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