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Harold I. Schiff Lecture -- Hydrochlorofluorons and the Ozone Layer

Nov 2, 2012, 2:30pm-4pm

A.R. Ravishankara, from the Chemical Sciences Division of the National Oceanic and Atmospheric Administration in the USA, talks about how the successful phase-out of ozone-depleting substances led to the use of other chemicals that do not deplete the ozone layer. Hydrofluorocarbons (HFCs) were one such class of compounds that have found increasing use over the years. Many HFCs are also potent greenhouse gases and their increasing use can offset the benefits gained to date. Ravishankara will discuss the phase-in of HFCs and the impact on climate, the role of nitrous oxide as an ozone-depleting gas, and the atmospheric science of these chemical as well as their implications to decision making.


Location:103 Life Science Building
Sponsor:Centre of Atmospheric Chemistry
Posted by:Carol Weldon
Web Sitehttp://www.cac.yorku.ca/
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