MEXICO CITY – Mario Molina, winner of the Nobel Prize in chemistry in 1995 and the only Mexican scientist to be honored with a Nobel, died Wednesday in his native Mexico City. Later, he focused on confronting air pollution in major cities like his own Mexico City and pushing for global actions to promote sustainable development. One of his last public appearances was alongside Mexico City Mayor Claudia Sheinbaum, also a scientist, in a video conference during which Molina reflected on the coronavirus pandemic and the importance of wearing masks to avoid transmission. Only two other Mexicans have been awarded Nobel Prizes: Alfonso García Robles received the Peace Prize in 1982 for his work on nuclear weapons negotiations and writer Octavio Paz was awarded the prize for literature in 1990. Molina died on the same day this year's prize for chemistry was awarded.