Mario Molina: Notable Achievements, Education, and Biography

Mario Molina, a distinguished chemist and Nobel laureate, dedicated his life to understanding the effects of human activity on the Earth’s atmosphere. His groundbreaking work on the depletion of the ozone layer helped to shape international policy on the issue and raise public awareness about the importance of protecting our planet. In this article, we celebrate the life and achievements of Mario Molina, a true pioneer in the field of climate science.

Name: Mario J. Molina
Born: March 19, 1943
Birthplace: Mexico City, Mexico
Nationality: Mexican-American
Occupation: Chemist, Environmental Scientist
Notable Achievements:
  • Co-discovered the threat to the Earth’s ozone layer from chlorofluorocarbons (CFCs)
  • Received the Nobel Prize in Chemistry in 1995 (shared with F. Sherwood Rowland and Paul Crutzen) for his work on atmospheric chemistry, particularly regarding the formation and decomposition of ozone
  • Served on numerous scientific and environmental boards and committees, including the President’s Committee of Advisors on Science and Technology (PCAST)
  • Bachelor’s degree in Chemical Engineering from the National Autonomous University of Mexico
  • Ph.D. in Physical Chemistry from the University of California, Berkeley
Death: October 7, 2023

Early Life and Education

Mario Molina

Mario José Molina was born on March 19, 1943, in Mexico City, Mexico. From a young age, he developed a passion for science, and he would often conduct chemistry experiments at home with the encouragement of his father, a lawyer, and his aunt, a chemist.

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Molina’s thirst for knowledge led him to pursue higher education in the United States. He earned a bachelor’s degree in chemical engineering from the National Autonomous University of Mexico (UNAM) in 1965, followed by a master’s degree in polymerization kinetics from the University of Freiburg in Germany in 1967. In 1972, Molina received his Ph.D. in physical chemistry from the University of California, Berkeley.

The Ozone Layer and CFCs

In 1974, Mario Molina and his research partner, F. Sherwood Rowland, published a landmark paper in the journal Nature that would change the course of climate science. They discovered that chlorofluorocarbons (CFCs), a class of chemicals used in refrigeration, air conditioning, and aerosol spray cans, contributed to the depletion of the ozone layer. The ozone layer is a critical part of Earth’s atmosphere, as it helps to protect life on our planet from harmful ultraviolet (UV) radiation.

Molina and Rowland demonstrated that when CFCs reach the stratosphere, they are broken down by UV light, releasing chlorine atoms that catalytically destroy ozone molecules. Their research sounded the alarm on the dangers of CFCs and initiated a global conversation about the importance of protecting the ozone layer.

Nobel Prize and Beyond

In recognition of their groundbreaking work, Molina and Rowland were awarded the Nobel Prize in Chemistry in 1995, along with Swedish scientist Paul Crutzen, for their research on atmospheric chemistry and its effect on the ozone layer. Molina became the first Mexican-born scientist to receive the prestigious award.

Following his Nobel Prize win, Molina continued to be a leading advocate for environmental protection and climate change mitigation. He served on numerous international panels and advisory boards, including the Intergovernmental Panel on Climate Change (IPCC) and the United Nations Environment Programme (UNEP).

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In 2004, Molina founded the Mario Molina Center for Energy and Environment in Mexico, a non-profit organization focused on promoting sustainable development and addressing the challenges of climate change.


Mario Molina passed away on October 7, 2023, at the age of 77, but his legacy lives on. His pioneering research on the dangers of CFCs led to the adoption of the Montreal Protocol in 1987, an international agreement to phase out the production of ozone-depleting substances. This treaty has since been hailed as one of the most successful environmental agreements in history, with the ozone layer now showing signs of recovery.

Molina’s dedication to understanding and protecting our planet has left an indelible mark on the field of climate science. His work serves as a powerful reminder of the importance of scientific discovery and international cooperation to address the global challenges that affect us all. The world will always remember Mario Molina as a pioneer, an advocate, and a hero in the fight against climate change.