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Our Team


Alison L. Steele, MBA

Executive Director

Alison L. Steele earned her undergraduate degree in physics from Drew University in Madison, NJ and her MBA in Sustainable Business Practices from Duquesne University in Pittsburgh, PA. As part of her graduate work, Alison studied sustainability tools and practices used by leading companies in Europe, performed consulting services for large Pittsburgh-area companies, and published research on organizational behavior techniques used to aid adoption of sustainability initiatives. Prior to starting at EHP, she led policy and education efforts at Conservation Consultants, Inc. and developed the company's flagship grassroots community engagement program, which focused on advancing home health and energy efficiency in low-income Pittsburgh neighborhoods.

Patrick Dooling, MS

Deputy Director

Patrick Dooling received his BS in Geosciences from Penn State University and MS in Geology from the University of Utah. After studying a wide array of geological sciences including volcanology in Iceland, earthquake geology on major faults in Southern California, and sedimentology in southern Utah, he worked as a petroleum geologist and project manager in Houston, TX. Eager to transition to a career in environmental conservation, Patrick joined the Colorado-based Western Slope Conservation Center in 2016. As Executive Director, Patrick led the organization’s efforts to build grassroots support to protect and enhance Colorado’s iconic landscapes and watersheds.

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Kholood Ben-Essa, MBA

Regional Manager, Northeast 

Kholood Ben-Essa is a sustainability and environmental, social, and governance (ESG) specialist with a multidisciplinary background and global experience in asset management, development finance, and management consultancy. Throughout her 15-year career, she has worked in different countries, including the United Kingdom, Kuwait, and the United States. In the US, she joined the United Nations Secretariat, managing, monitoring, and evaluating various sustainability programs. As an engineer, a sustainable development goals (SDG) program officer, a financial consultant, and a business development strategist, Kholood's passion for making a positive impact on the world has grown at the intersection of these experiences. She holds a bachelor's degree in civil engineering, an MBA with a concentration in Finance, and CFA-ESG certification.

Jessa Chabeau, MSW

Regional Manager, Appalachia

Jessa Chabeau received her BA in sociology from Pennsylvania State University and her MSW from the University of Pittsburgh. During her MSW studies, Jessa focused on community organizing and social administration, while also becoming certified in human services management. While studying at the University of Pittsburgh, Jessa participated in a 9-month field placement at EHP in 2013, which led to her officially joining the organization in 2014 after graduation.

Staff, Jessa Chabeau

Nathan Deron, MS

Environmental Data Scientist

Nathan Deron earned his BS in political science and sociology at the University of Pittsburgh and his MS in Public Policy, Management, and Data Analytics from Carnegie Mellon University. While completing his MS, Nathan worked with the Allegheny County Department of Human Services to investigate novel interventions for frequent users of emergency services in Allegheny County. He also worked with 412 Food Rescue to develop a new model of food recovery to address rural hunger in Greene County, PA. Before attending Carnegie Mellon, Nathan spent three years at City of Asylum working to provide sanctuary to persecuted writers from around the world, including managing the Alphabet City performance venue.

Hanna Evanchak, MS

Community Science Coordinator

Hanna Evanchak received her BS in wildlife and fisheries science from Pennsylvania State University and her MS in Environmental Studies from Point Park University. Hanna is currently a first-year law student in the evening program at Duquesne University School of Law. Before beginning law school, Hanna volunteered with various wildlife and environmental nonprofits and worked in a PAAEL-accredited environmental lab conducting water quality analyses.

Staff, Hanna Evanchak
Staff, Ned Ketyer

Edward (Ned) Ketyer, MD, FAAP

Medical Advisor

Dr. Ned Ketyer is a Pittsburgh, Pennsylvania-area pediatrician. Dr. Ketyer enjoyed 26 years in private practice before retiring from patient care in 2017, although he continues to write a daily blog for AHN Pediatrics called The PediaBlog ( He remains a member of the American Academy of Pediatrics Council on Environmental Health and Climate Change and is President of Physicians for Social Responsibility Pennsylvania. Dr. Ketyer is a consultant for the Environmental Health Project bringing attention to the health impacts of fracking in the Marcellus Shale gas patch.

Dr. Ketyer’s work connects the rapid expansion of shale gas extraction (fracking) and petrochemical/plastic development in the Ohio River Valley with the local and regional health impacts currently experienced by residents, and the global ecologic and public health catastrophes resulting from plastic pollution and climate change that threaten the health and well-being of all passengers on this shining ball of blue.

Debbie Larson, BA

Medical Outreach Coordinator

Debbie Larson received her BA from the University of Pennsylvania, where she studied economics and mathematics. She worked for many years as an economic analyst and as a network and computer support specialist. More recently, she worked as an outreach educator for RiverQuest. She is a member of the Shale and Public Health Committee of the League of Women Voters.

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Jacquelyn (Jackie) Omotalade, JD

Public Policy Manager

Jackie Omotalade is an innovative and accomplished public policy leader, environmentalist, and social justice advocate who thrives on understanding and navigating public policy and public affairs on a global scale. With former residence amongst Indonesia, Ethiopia, Guatemala, Germany, Spain, France, Kenya, and Nigeria, she has been recognized as an expert in environmental advocacy, public policy, international programs, campaigns, and technology.

Supporting these achievements are her exemplary educational qualifications. These include a BA from Spelman College, a JD from the University of Pittsburgh, and a forthcoming Doctor of Education from Point Park University. Jackie is an active member of the community, contributing to organizations like the NEED (Negro Education Emergency Drive), Alpha Kappa Alpha Sorority, Inc., and the Pennsylvania Association of Environmental Educators.

Jo Resciniti

Digital Marketing Coordinator

Jo Resciniti received a BS in business administration with a focus in marketing from Robert Morris University in Moon Township, PA. Jo has years of experience managing social media, websites, and digital communications for nonprofit organizations and small businesses. Outside of work, Jo is a community organizer with the Concerned Residents of West Deer, a group she founded with her neighbors to oversee the township’s handling of two applications for shale gas well sites.   

Staff, Jo Resciniti
Staff, Scott Smith

Scott Smith, MA, MFA

Communications Manager

Scott Smith holds an MA in English from Pennsylvania State University and an MFA in creative writing from the University of Arizona. Scott has worked in the communications field for more than 20 years. Most recently, he was employed as a communications specialist and public relations coordinator at the Federal Home Loan Bank of Pittsburgh, where he worked extensively on promoting affordable housing programs.

Sherry Van Lange, MBBS, MPH

Data Analyst

Sherry Van Lange received her medical degree from the University of Guyana and her MPH from Southern Connecticut State University (SCSU). During her time as a doctor in the Caribbean, she developed a passion for environmental and public health. While at SCSU, she conducted community-based opioid research and completed a thesis paper about predictors of opioid prescribing practices. As a graduate student, she began working with EHP on the Safety Assessment of Siting Large Shale Gas Compressor Stations in Residential Neighborhoods in New York State. She continues to work with EHP as a data analyst after graduating from the MPH program.

Staff, Sherry Van Lange
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Makenzie White, MPH, LMSW

Public Health Manager

Makenzie White received a BS in social work from Franciscan University in Steubenville and an MPH and MSW from the University of Pittsburgh. During graduate school, Makenzie focused on social administration and community health while also earning certifications in human services management and global health. Previously, she has worked with nonprofits providing services to adults and children with intellectual disabilities, developmental disabilities, and mental health disorders. She is currently a licensed and practicing social worker in Pittsburgh. Outside of work, Makenzie volunteers as the President of the Pittsburgh Professional Chapter of Engineers Without Borders (EWB), a Disaster Service Associate with the American Red Cross, and a consultant for Engineers Without Borders USA.  

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