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Debra Perrone, PhD

Researching water scarcity challenges facing society.
​Integrating water quality, quantity, and policy sciences.

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Black Water

Global Groundwater Wells at Risk of Running Dry

Globally, groundwater supplies billions of people with drinking water, sustains 40% of global irrigated agriculture, and enables economic productivity summing in the tens-of-billions of dollars. This paper highlights the first-ever global maps showing where groundwater is being used and where human water access is threatened so that groundwater resources can be managed better. 


​Debra Perrone is an Assistant Professor of UCSB’s Environmental Studies Program and a non-resident fellow of Stanford’s Water in the West Program. Prior to joining the faculty at the University of California, Debra was a postdoctoral research scholar at Stanford University with a dual appointment in the Department of Civil and Environmental Engineering and the Woods Institute for the Environment.​ She received her PhD in Environmental Engineering at Vanderbilt University in 2014 and was awarded first honors as the Graduate School’s Founder’s Medalist. ​

Debra Perrone is a first-generation college attendee. 

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