Benjamin Leffel

Assistant Professor of Public Policy
Sustainability
Climate change
Corporations
Cities
Global governance
Diplomacy

Ben Leffel, an assistant professor in the School of Public Policy and Leadership, is an expert sustainability governance by cities, states and corporations globally.

Prior to joining UNLV, Leffel served as a postdoctoral research fellow at the University of Michigan’s Erb Institute for Global Sustainable Enterprise and a lecturer at the University of California, Merced. His published work focuses on world cities fighting climate change, including the role of private climate consulting and city membership in transnational environmental networks, global urban pollution abatement, and climate finance allocation to local governments.

Leffel has published op-eds in the Harvard Business Review, The Hill and the Chicago Council on Global Affairs, and has served as a climate action advisor to the City of Irvine, California. 

Ph.D., UC Irvine
Community Speaker
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Alexander Barzilov

Professor of Mechanical Engineering
Mechanical engineering
Nuclear engineering
Radiation applications
Remote radiation sensing

Alexander Barzilov leads the Nuclear Engineering Laboratory at UNLV where he mentors numerous graduate students in the areas of nuclear engineering, mechanical engineering, and nuclear physics.

The lab is at the forefront of novel radiation detection technologies in an effort to support national security and environmental management of radioactive facilities. He's also an expert in gamma spectroscopy, remote sensing of radiation using aerial and ground robotic platforms, neutron detection, active and passive assay of radiological materials, and reactor physics.

In 2021, Barzilov launched the Nuclear Security Science and Technology Consortium, which is designing and building a sustainable pipeline of student talent between the Department of Energy’s sites and National Laboratories, and the minority-serving institutions that are part of the program. 

M.S., Obninsk Institute of Nuclear Power Engineering
Ph.D., Institute for Physics and Power Engineering
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Chad L. Cross

Professor in Residence, School of Public Health
Co-Director, MW CTR-IN, Biostatistics, Epidemiology, and Research Design Core
Biostatistics
Epidemiology
Disease ecology
Medical and veterinary entomology
Parasitology
Vector-borne diseases

Chad L. Cross is a researcher who also teaches courses for the Department of Epidemiology & Biostatistics housed within UNLV's School of Public Health. He has expertise on the ecology and epidemiology of parasites and vector-borne diseases — illnesses that can be transmitted directly or indirectly between animals and humans, such as Lyme disease, tick-borne encephalitis, and West Nile virus. He also studies medical and veterinary entomology, a branch of zoology that examines the biology and control of ticks, mites, and other insects. 

Prior to academia, Cross did stints with the U.S. Environmental Protection Agency and Veterans Health Administration, and worked in private industry as a quantitative ecologist and statistician.

His research has investigated chronic and infectious diseases; used statistics to examine problems in the health, psychological, environmental, and ecological sciences, such as clinical trials and avian fatality around wind turbines; and taken him into the field to study arthropod-borne and parasitic diseases. His projects have explored topics such as PTSD in veterans, links between neurodevelopmental disorders and sports concussions, and postmortem THC levels in decedents following the legalization of recreational cannabis in Clark County, Nevada. 

Ph.D., Ecological Sciences (Quantitative Ecology), Old Dominion University
M.S., Computational & Applied Mathematics (Statistics), Old Dominion University
M.S., Entomology & Nematology (Medical & Veterinary), University of Florida
M.S., Counseling (Systems Theory), UNLV
B.S., Wildlife Science, Purdue University
B.S., Biological Sciences, Purdue University
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David Kreamer

Professor of Hydrology, College of Sciences
Water resources
Historical climate change
Environmental pollution
Hydrogeology
Groundwater contaminants

David K. Kreamer is a hydrologist within UNLV's Department of Geoscience who has expertise in topics surrounding water resources, climate change, and pollution.

Kreamer's research includes environmental contamination, spring sustainability in national parks and on public lands, clean water supply in developing nations, radioactive waste disposal, water quality and quantity improvement, groundwater hydrology, landfills, water and international security, and monitoring well design.

His work has been published in more than three dozen journals. Additionally, Kreamer has delivered over 150 invited lectures and keynote speeches around the world. They include testimony before the U.S. Congress and the U.S. Nuclear Regulatory Commission on water quality issues associated with uranium mining; lectures for the U.S. Environmental Protection Agency and U.S. Bureau of Land Management; and a March 2021 address before the United Nations General Assembly on world water challenges.

Kreamer is currently president of the International Association of Hydrogeologists. He is a former president of the Universities Council on Water Resources and past member of the National Ground Water Association's board of directors.

Ph.D., Hydrology, University of Arizona
M.S., Hydrology, University of Arizona
B.S., Microbiology, University of Arizona
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Tara Pike

UNLV Sustainability Coordinator/Recycling Manager
Recycling
Sustainability
Environment

Tara Pike, sustainability coordinator and manager of the UNLV Recycling Program, is an expert on waste reduction, recycling, and resource management on campus.

Since joining UNLV in the 1990s as an environmental studies undergraduate, Pike has championed green living. She founded the Rebel Recycling Program in 1995, and has led efforts that increase environmental awareness at UNLV and throughout Southern Nevada. Since 2003, Pike's program has recycled more than 5,600 tons of material on campus.

Pike also serves as Vice President of Campus Race to Zero Waste, a partnership with the National Wildlife Federation that teaches universities how to reduce or eliminate waste.

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Nicholas Irwin

Associate Professor of Economics
Economy
Microeconomics
Urban Economics
Environmental Economics
Real Estate
Sustainability

UNLV Lee Business School professor Nicholas Irwin studies microeconomics, particularly environmental and urban economics with a focus on the implications of these areas on real estate markets, human decision making, and demographics. His expertise is used to provide insight into proposed environmental or urban policies in Nevada and the economic implications surrounding them.

Irwin has conducted research on issues including the implications of COVID-19 on the housing market and water use, homeowners' response to new information about environmental hazards, the role of neighbors in homeowner decision making, and the implications of wildfire and other risks on housing demand and supply.

Irwin's work has been published in leading environmental and urban journals, including the Journal of Environmental Economics and Management, Energy Policy, Land Economics, and the Journal of Real Estate Research.

Ph.D., Agricultural, Environmental, and Development Economics, The Ohio State University
M.S., Agricultural, Environmental, and Development Economics, The Ohio State University
M.A., Economics, American University
B.A., Economics, The Ohio State University
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Erika Marquez

Assistant Professor, School of Public Health
Health disparities
Child development
Diversity in health communication
Environmental health

UNLV School of Public Health professor Erika Marquez is an expert on health disparities, children's health, improving diversity in health communication, and finding ways to creatively dispense health information to underserved populations. She also serves as co-director of Health Equity Research and Training for the Nevada Minority Health & Equity Coalition — a partnership of academic, civic, private and community organizations that aim to address health disparities and inequities in Nevada by building capacity, informing policy, and conducting research — which is housed within the School of Public Health.

Marquez has devoted the last decade of her career to working on local issues focused on housing quality, housing-related health concerns, and housing equity. Her research uses data and research to inform programs, policies, and practices, as well as to advance the field of public health.

Specifically, she has examined the impact of lead in children, as well as used surveillance data to inform public health decisions and engage community partners to improve housing conditions and increase blood lead testing in young children. More recently, Marquez has led #OneCommunity, a COVID-19 prevention and vaccine awareness outreach campaign that aims to educate and reach at-risk populations (including the Hispanic, Latinx, Asian American Pacific Islander, LGBTQ, African American, Deaf and Blind, and Native American communities) via the development of culturally responsive content and media, translated materials, billboards, digital advertising, and more.

Prior to her current roles, Marquez was a research associate at UNLV's Nevada Institute for Children's Research and Policy.

Ph.D., Social Behavioral Health, UNLV
M.P.H., Epidemiology & Biostatistics, UNLV
Psychology, San Francisco State University
A.A., Psychology, Skyline College
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Frank van Breukelen

Professor, School of Life Sciences
Hibernation
Evolution
Biochemical adaptation
Physiology
Cellular biology
Pupfish

Frank van Breukelen is an associate professor of biological sciences in the UNLV School of Life Sciences. 

Since joining UNLV in 2002, van Breukelen has explored biochemical and molecular approaches to understand what allows animals to survive in extreme environments. Most notably, van Breukelen and his team have tackled projects involving small rodent hibernation and adaptation of the pupfish within the Death Valley region.

In addition to research, van Breukelen teaching courses on subjects including mammalian, cellular, and environmental physiology; biochemical adaptations; and bioenergetics.

Ph.D., Environmental, Population, and Organismic Biology, University of Colorado, Boulder
B.S., Animal Science, California State Polytechnic University, Pomona
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Jef Jaeger

Associate Professor in Residence, School of Life Sciences
Conservation biology
Phylogeography
Desert wildlife
Ecology
Population biology
Climate change

Life sciences professor Jef Jaeger specializes in conservation biology, ecology, population biology, and phylogeography. In addition to research, his passions include teaching biological sciences to undergraduate students who are pursuing degrees outside of sciences.

Since 1991, Jaeger has published over 25 publications highlighting desert wildlife — including bighorn sheep, amphibians, and more — and climate change indicators in the American West. Jaegar's publications have been recognized by publications including Frontiers of Ecology and Evolution and ScienceDaily.

Jaeger has received numerous fellowships and awards throughout his career at UNLV, including the College of Sciences' Outstanding Dissertation for 2006 and the U.S. Environmental Protection Agency's National Network For Environmental Management Studies (NEMS) Fellowship.

Ph.D., Biological Sciences, UNLV
M.S., Biological Sciences, UNLV
B.A., Environmental Studies, University of California, Santa Cruz
Jef Jaeger's Portrait
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Bret Birdsong

Professor of Law
Public Lands and Natural Resources Law
Water Law
Environmental Quality Law
Property Law
Administrative Law

UNLV William S. Boyd School of Law professor Bret Birdsong is a recognized expert in public lands management, federal natural resources, water rights, food system, and conservation law. 

Prior to joining UNLV, Birdsong served the United States Department of Justice, Environment and Natural Resources Division, as a trial attorney focusing on public land and natural resources litigation from 1994 to 2000. As an Ian Axford Fellow in Public Policy in 1998, he studied New Zealand's specialized Environment Court and served as a visiting fellow in the office of New Zealand's Parliamentary Commissioner for the Environment.

More recently, he served in the Obama administration as deputy solicitor for Land Resources at the U.S. Department of the Interior, providing counsel to the Secretary of the Interior regarding the Bureau of Land Management, National Park Service, and other agencies regarding important conservation and land management policy initiatives.

Birdsong is a co-author of Natural Resources Law: A Place-Based Book of Problems and Cases, and edits chapters on Federal Reserved Water Rights and Interstate Water Allocation in the Treatise Waters and Water Rights.

J.D., University of California, Hastings College of the Law
B.A., Princeton University
Bret Headshot
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