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What to look for on Smart Talk Tuesday, November 13, 2018:

 

Prof. Richard Alley, Evan Pugh University Professor, department of Geosciences, and Earth and Environmental Systems Institute.

:  Mass extinction/loss of biodiversity

Guest: Prof.  S. Blair Hedges, Director, center for biodiversity, Temple University and Kerry Cesareo, vice president for Forests with the World Wildlife Fund……..