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The oxygen content of earth's ocean has changed dramatically through time, beginning with essentially no oxygen and rising to present-day levels, with important consequences for the evolution of life. Oxygen levels in modern oceans are also shifting as a consequence of global warming. Learn how low-oxygen settings in the modern ocean can inform us about the "explosion" of animal life more than half a billion years ago, mass extinctions, and the future our ocean. Recorded on 3/9/2015.

Computer simulations of earthquake shaking can provide valuable information on the expected intensity of shaking from earthquakes. Arthur Rodgers, a seismologist/geophysicist at Lawrence Livermore National Laboratory, covers seismic hazard in the Bay Area, describes computer simulations of past and possible future earthquakes and looks at the physics that underlies the numerical methods.

An evening of conversation and celebration at the close of the 100th anniversary of the birth of Dr. Jonas Salk featuring his sons Jonathan and Peter, author Mary Walshok and Gary Robbins, science editor of the San Diego Union-Tribune. The panel reflects on how Jonas Salk, his wife Francoise Gilot and his Institute shaped San Diego and its fledgling biomedical community; the interplay between Salk and other leaders in building the civic infrastructure, and other remembrances from the Salk brothers about their father's discovery of a vaccine for polio.

Interest in the human microbiome has moved quickly from frontier science to public awareness. Larry Smarr, Director of CalIT2 at UC San Diego, describes the ways he uses technology to gather body data to track his internal biomarkers and how microbiome research is blossoming at UC San Diego.

Climate change policy expert David Victor, a professor of International Relations at UC San Diego's School of Global Policy & Strategy and two of his graduate students provide insights into the process and the outcome of the 2015 COP 21 climate talks in Paris. Victor has been a participant in the Intergovernmental Panel on Climate Change (IPCC) proceedings since the IPCC's inception Victor is presented here by the UC San Diego Library Channel.

Conversations host Harry Kreisler welcomes Professor V.S. Ramachandran, Director of the Center for Brain and Cognition, University of California, San Diego, for a discussion of his research on the brain. Professor Ramachandran describes his formative experiences, the richly textured methodology that forms his approach to the study of the brain, insights he has gained from studying phantom limbs, mirror neurons and synesthesia. He concludes with speculation on the origins of creativity and consciousness.
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