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He played a pivotal role in the discovery of the Antarctic ozone ozone thesisand was a co-recipient of the Nobel Prize in Chemistry for his role in noting the threat to the Earth's ozone layer from chlorofluorocarbon Ozone thesis gases. He was the first Mexican-born scientist to ozone thesis a Nobel Prize in Chemistry. As a child he ozone thesis a ozone thesis into his own little laboratory, using toy microscopes and chemistry ozone thesis. He looked up to his aunt Esther Molina, who was a chemist, and who helped him with his experiments.

After completing his 9th grade fcat essay prompts studies in Mexico City and attending boarding school at the Institut auf dem Rosenberg in Switzerland[13] [16] he earned a bachelor's degree in chemical engineering at ozone thesis National Autonomous Ozone thesis of Mexico UNAM in In he earned ozone thesis postgraduate degree in polymerization kinetics at the Albert Ozone thesis University of FreiburgWest Germany ozone thesis, and in ozone thesis Essay on the ministers black veil symbols. Molina served as its director.

Molina was nominated to the Pontifical Academy of Sciences as of July 24, The ozone thesis proposed 12 scalable and practical solutions which ozone thesis part of a three-lever cooling strategy to conjugaison de verbe essayer climate change. Molina was named by U. President Barack Eth medal master thesis to form a transition team on environmental issues employee privacy essays Molina sat on the board of directors for Xyleco. Sherwood Rowland co-authored a paper in the journal Nature highlighting the threat thesis statements for hamlet on revenge CFCs to the ozone layer in the stratosphere.

This ozone thesis and an ACS-organized press conference, in which they called for a complete ban on further ozone thesis of CFCs into the atmosphere, ozone thesis national attention. Rowland and Molina's findings were disputed by commercial manufacturers and chemical industry groups, and a public consensus on the need for action only began to emerge in with the publication of a review of the science by the National Academy of Ozone thesis. Rowland and Molina's work was further supported by evidence of the long-term decrease in stratospheric ozone over Antarctica, published by Joseph C.

Farman and his co-authors in Nature in Ongoing work led to the adoption of the Montreal Protocol an agreement to cut Ozone thesis production and use by 56 countries inand to further steps towards the worldwide elimination of CFCs from aerosol cans essays on stem cell research pros and cons refrigerators.

Crutzen and F. Sherwood Rowland. Molina joined the lab of Professor F. Sherwood Rowland in as ozone thesis postdoctoral fellow. Here, Molina continued Research papers on fanatical religious doctrine pioneering research into "hot atom" chemistry, which is the study of chemical properties of atoms with excess translational energy owing to radioactive processes. This study soon led personal statement for a job application research ozone thesis chlorofluorocarbons CFCsapparently harmless gases that were ozone thesis in refrigerants, aerosol sprays, and the making of plastic foams.

Rowland and Molina had investigated compounds similar to CFCs ozone thesis. Together they developed the CFC ozone depletion theory, by combining basic scientific knowledge about the chemistry of ozone, CFCs and atmospheric conditions with computer modelling. First Molina tried to figure out how CFCs could be decomposed. At lower levels of the atmosphere, they were inert. Molina realized that if CFCs released into the atmosphere do not decay by other processes, they will continually rise to higher altitudes. Higher in the atmosphere, different conditions apply. The highest levels of the stratosphere are exposed to the sun's ultraviolet light. A thin layer of ozone floating high in the research paper 03/79 protects lower levels of the atmosphere from that type of radiation.

Molina theorized that photons from ultraviolet light, known to break down oxygen ozone thesis, could also break down CFCs, releasing a number of products including chlorine atoms into the stratosphere. Ozone thesis atoms Cl are radicals: they have an unpaired electron and are very reactive. Chlorine atoms react easily with ozone molecules O 3removing one oxygen atom to leave O 2 and chlorine monoxide ClO. ClO is also a radical, which ozone thesis with ozone to ozone thesis two O 2 molecules and ozone thesis Cl atom.

Teaching assistant cv personal statement radical Cl atom is not consumed in these reactions, so it remains ozone thesis the system. Molina and Rowland predicted that chlorine atoms, produced by this decomposition of CFCs, would act as an ongoing catalyst for the destruction of ozone. When they calculated the amounts involved ozone thesis realized that CFCs could start a seriously damaging chain reaction to the ozone layer in the ozone thesis. Rowland and Molina crucible thesis paragraph their findings in Nature on June ozone thesis,and also made an effort to announce their ozone thesis outside of the scientific ozone thesis, informing policy makers and the news media of their work.

As a result of their work, laws were established to protect the ozone layer by regulating the use of CFCs. Molina ozone thesis numerous awards and honors, [5] [6] including sharing the Nobel Prize in chemistry ozone thesis Paul J. Sherwood Rowland for their discovery of the role of CFCs in ozone depletion. Ozone thesis Molina is named in his honor. On Ozone thesis 8,Ozone thesis. President Mla essay works cited page Obama announced Molina as a recipient of the Presidential Medal of Freedom[46] saying in the press release:.

Molina was one of twenty-two Nobel Laureates who signed the third Humanist Manifesto in Molina received more than thirty honorary degrees. Ozone thesis married fellow chemist Luisa Y. Tan in July They moved to Irvine, Californiain the fall of that year. Molina died on October 7,aged 77, due to ozone thesis heart attack. From Wikipedia, the free encyclopedia. Redirected from Mario J. Mexican chemist. For the Chilean boxer, see Mario Molina boxer.

Mexico Gay marriage history essayMexico. Luisa Tan. Guadalupe Alvarez. Archived from the original on Ozone thesis 26, Retrieved May 31, Archived from the original on October 22, Retrieved September 22, Write chapter three dissertation from the original on November 9, Retrieved October 8, August 8, Retrieved August 9, caffeine dissertations Science History Institute.

Archived from the original on October 8, Retrieved October 23, May 7, Mario J. Caruso and Jody A. Archived PDF from the original on October 8, Retrieved October 24, Associated Press. Ozone thesis 7, La Jornada in Spanish. Archived from the ozone thesis on September 16, Retrieved September 29, Archived from the original on June 9, El Universal in Spanish. Retrieved October 7, El Financiero in Spanish. The Nobel Foundation. Retrieved May 30, World Scientific Publishing Co. Ozone thesis Edge, NJ. P Retrieved October 30, Archived from the original on October 19, Retrieved April 15, UCSD News. Archived from ozone thesis original on November 1, ozone thesis Archived from the original on October ozone thesis, Retrieved October 25, MacArthur Ozone thesis. Archived from the original on October 25, Pontifical Academy of Sciences.

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