Meet the Experts

Find experts across Johns Hopkins involved in research and teaching related to environment, energy, sustainability and/or health. The following list is organized by the expert's last name. You can also search by area of expertise.

Learn more about the support E²SHI provides to Hopkins faculty, staff researcher or instructors.


Bentley Allan

Assistant Professor, Dept of Political Science
Krieger School of Arts and Sciences

bentley.allan@jhu.eduFaculty Website

Research Areas:
  • Global environmental politics
  • Scientific knowledge and experts in global governance
  • Social-ecological systems
  • History and politics of economic development
Keywords: Environmental Policy, Governance and Participation, International Policy

Stuart Chaitkin

Senior Associate, Dept of Environmental Health and Engineering
Bloomberg School of Public Health

Research Areas:
  • Energy, environment and public health linkages.
  • Energy regulation and policy analysis.
  • Regional transportation planning and analysis.
  • Sustainable cities.           
Keywords: Energy and health, transportation

Gregory Diette

Associate Professor, Division of Pulmonary and Critical Care Medicine
School of Medicine

gdiette@jhmi.eduFaculty Website

Research Areas:
  • Identifying factors that cause or provoke asthma, especially in air pollutants and allergens that are especially problematic in inner city homes. 
  • Examining how dietary patterns, especially a Western style diet may increase susceptibility to inhalable pollutants and allergens.
Keywords: Air Pollution, Behavior Change, Environmental Health, Epidemiology, Health Policy

Paul Ferraro

E²SHI Executive Committee member
Bloomberg Distinguished Professor
Carey Business School and Whiting School of Engineering (Dept of Environmental Health and Engineering)

pferraro@jhu.eduFaculty Website

Research Areas:
  • Behavioral economics in a broad set of environmental issues, including energy, water and ecosystems
  • Designing and evaluating environmental programs in the private and public sectors

Selected Publications

Ferraro, P.J., Hanauer, M.M, Miteva, D.A., Nelson, J.L., Pattanayak, S.K., Nolte, C., Sims, K.R. (2015). "Estimating the Impacts of Conservation on Ecosystem Services and Poverty by Integrating Modeling and Evaluation." Proceedings of the National Academy of Sciences, 112(24), pp. 7420-7425. 

Ferraro, P.J. and Hanauer, M.M. (2015). "Through What Mechanisms do Protected Areas affect Environmental and Social Outcomes?" Philosophical Transactions of The Royal Society B, 370(1681), 267.

Keywords: Behavior analysis/change, Ecology, Energy, Policy, Water

Mary Fox

Assistant Professor, Dept of Health Policy and Management
Bloomberg School of Public Health

mfox@jhu.eduFaculty Website

Research Areas:
  • Chemical risk assessment
  • Community environmental health

Selected Publications

Chari, R., Burke, T.A., White, R.H., Fox, M.A. (2012) "Integrating Susceptibility into Environmental Policy: An Analysis of the National Ambient Air Quality Standard for Lead.International Journal of Environmental Research and Public Health, 9(4), pp. 1077-1096.

Keywords: Environmental policy, Health policy, Risk assessment

Carla Freeman

Associate Director of China Studies, School of Advanced International Studies

Executive Director, Foreign Policy Institute

cfreeman5@jhu.eduFaculty Website

Research Areas:
  • Policy making, political economy of environmental policy
  • Sustainable development in China

Selected Publications

Freeman, C. (2011). "Quenching the Dragon's Thirst: The South-North Water Transfer Project - Old Plumbing for New China?"

E²SHI-Supported Projects

The visible hand meets the market: assessing China’s two-pronged carbon reduction strategy.

Keywords: China's environment and development, Environmental politics and security, Energy policy

Daniel Hamilton

Director, Center for Transatlantic Relations, School of Advanced International Studies (SAIS)

dhamilton@jhu.eduFaculty Website

Research Areas:

Coordinate coalition of researchers, companies, stakeholders on evolution of markets in health, low-carbon economy, and education, and potential roles for enabling technologies. Lead policy-oriented work on challenges of environment, energy, sustainability and health among advanced industrial societies. Policy implications of developments in environment, energy, etc.

Keywords: Environmental Policy, Foreign Policy, Globalization/Trade, Governance/Participation, International Policy

James P. Howard, II

Senior Professional Staff II / Lead Data Scientist and Service Manager
Applied Physics Laboratory

james.howard@jhuapl.eduFaculty Website

Research Areas:
  • Flood insurance
  • Water policy
  • Data science
Keywords: Environmental economics, Environmental policy, water, Risk analysis/ assessment

Roni Neff

E²SHI Executive Committee member
Assistant Professor, Dept of Environmental Health and Engineering
Director of Research Program and Food System Sustainability & Public Health Program, Center for a Livable Future
Bloomberg School of Public Health

rneff1@jhu.eduFaculty Website

Research Areas:
  • Policy and social science research on themes relevant to understanding and changing food systems, including promoting environmental sustainability and addressing disparities.
  • Food and ecological concerns, including climate change, peak oil, and soil.
  • Public health and agricultural policy, especially the Farm Bill.
  • Access to sustainably produced and healthy food.

Selected Publications

Laestadius, L., Neff, R.A., Barry, C.L, Frattaroli, S. (2013). "Meat Consumption and Climate Change: The Role of Non-Governmental Organizations." Climatic Change, 120(1), pp. 25-38.

Neff, R. (2014). Introduction to the US Food System: Public Health, Environment, and Equity. San Francisco: Jossey-Bass.

Keywords: Food systems, Climate and health, Equity/justice, Behavior interventions, Policy

Jian Ni

Associate Professor
Carey Business School

jni@jhu.eduFaculty Website

Research Areas:
  • Consumption of health insurance and health care service
  • Health insurance contract design
  • Energy pricing in the socially sustainable environment

Selected Publications

Liu, P., Ni, J., Shen, Q. (2014). "The Influence of Dynamic Pricing on Consumers' Electricity Saving Behaviors." Poster presented at the annual meeting of the International Association of Energy Economics (IAEE) in Los Angeles, CA. 

E²SHI-Supported Projects

Public health impacts of gasoline vapor releases from gas stations

Promoting Appropriate Waste-Disposal Practices in Low-Income Neighborhoods

Keywords: Behavior change, Corporate social responsibility, Energy efficiency, Health economics

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When we heal the earth, we heal ourselves.
— David Orr