Diana Margaret Liverman is Regents Professor of Geography and Development, and co-Director of the Institute of the Environment at the University of Arizona, USA. She is an expert on the impacts of climate on society. Wikipedia*
On the C-SPAN Networks:
Diana Liverman has two videos in the C-SPAN Video Library; the first appearance was a 1997 Statement as a Professor for the School of Geography and Development of the University of Arizona. The year with the highest average number of views per program was 2012 with an average of 299 views per program.