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.
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.
Episode 185: Did a Supernova Cause a Mass Extinction?, with Brian Fields
Episode 184: The Milky Way's First Fast Radio Burst, with Sandro Mereghetti
Episode 183: COVID-19 Meets the NASA Space Apps Challenge, with James Slifierz
Episode 182: Planet Nine or Black Hole One, with Jakub Scholtz
Episode 181: Reports of Betelgeuse’s Death Are Greatly Exaggerated, with Emily Levesque
Episode 180: Wormholes through Space and Time, with John Cramer
Episode 179: Dreams of Floating Cities, with Geoffrey Landis
Episode 178 Sibling Rivalry at the Centre of the Galaxy, with Smadar Naoz
Episode 177: The Case of the Missing Dark Matter, with Guo Chi
Episode 176: Second Genesis, with Jay Melosh
Episode 175: The Truth is Out There (at the University of Manitoba)
Episode 174: Fuzzy Dark Matter, with Lachlan Lancaster
Episode 173: Discovering an Ancient Oasis, with William Rapin
Episode 172: The Hubble Not-So Constant
Episode 171: Ploonets: When Moons Go Rogue, with Jorge Zuluaga
Episode 170: The Mystery of Fast Radio Bursts, with Vikram Ravi
Episode 169: Science at the Limits (Part 2)
Episode 168: Celebrating Apollo + Science at the Limits (Part 1)
Episode 167: Current in Space + The Best of The Star Spot: Nobel laureate Brian Schmidt
Episode 166: Nanodiamonds are Forever, with Jane Greaves
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