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Feature Guest: Susan Strahan
While human activity is what created the ozone hole, scientists just announced direct evidence that human activity is now responsible for healing that damage. That makes the Montreal Protocol, which banned the emission of chlorofluorocarbons or CFCs, along with other ozone depleting substances, the most successful international environmental agreement to date. Today we’re joined at The Star Spot by Dr. Susan Strahan, who lead a team that studied the reduction of CFCs, to discuss the fall and rise of the ozone layer and what this means for future efforts to achieve international cooperation on critical environmental issues like climate change.
The Star Spot is now on the Radio!
Star Spot podcast is now The Star Spot podcast and radio show. That’s right. Your favourite astronomy program is now travelling through space, specifically the 1280AM frequency. Our broadcaster, CJRU The Scope at Ryerson, is now available on the radio dial, which means you can join us at The Star Spot at 1280AM every Sunday 8PM and Tuesday 6PM Eastern Time.
Visit http://www.thescopeatryerson.ca/ to learn more about our partner radio station.
Current in Space
Tabby’s star may no longer be the megastructure of another species, but as Tony explains, the way in which we figured that out says quite a lot about this one.
About Our Guest
Susan E. Strahan is atmospheric scientist at NASA’s Goddard Space Flight Center where she works in the Atmospheric Chemistry and Dynamics Branch. She holds a PhD in Chemistry from the University of California Berkeley. Her research involves making stratospheric trace gas measurements and studying chemistry-climate models. She is a member of the American Geophysical Union and the American Meteorological Society.
Links
NASA Study: First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban (NASA)
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The Star Spot is also broadcast on The Scope at Ryerson. The show airs every Sunday at 8:00PM and Tuesday at 6:00PM Eastern Time. Listen live here
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