Get to Know the Team Behind the Mission
Our team is comprised of passionate individuals with a shared commitment to driving environmental stewardship and advancing sustainable practices in green infrastructure and stormwater management. With diverse expertise and a collective vision for a greener future, we work tirelessly to innovate, collaborate, and make a positive impact on our communities and the environment.
Strategic Planning & Policy Committee (SPPC)
Stephanie Chiorean
Environmental Staff Scientist & Planner
Philadelphia, PA
Irene Ogata
Urban Landscape Manager
Tucson, AZ
Katherine England
Director of Green Infrastructure
Boston, MA
Heidi Horlacher
Senior Water Resources Specialist
Vancouver, BC
Torrey Lindbo
Water Resources Science & Policy Manager
Gresham, OR
Beatrice Ohene-Okae (Co-Chair)
Environmental Protection Specialist at DOEE
Washington D.C.
Claire Maulhardt (Co-Chair)
City Beautiful H2O Manager at Capital Region Water
Harrisburg, PA
Sally Hoyt, PE
Stormwater Plan Review Supervisor, City of Raleigh Municipal Government
Lisa Sasso
Project Manager for MMSD
Milwaukee, WI
Andy Szatko
GI Maintenance Project Manager
Omaha, NE
Ryan Durocher
Watershed Operations & Maintenance Division Manager
Portland, OR
Matt Wilson
Senior Engineer, City of Toronto
Toronto, Canada
GI Leadership Exchange
Our Staff
Nina Baldwin
Program Manager (Atlanta, GA)
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Originally from NC, Nina received a B.S. in Biology from East Carolina University. Since 2016, she’s worked as an environmental educator for several institutions, most recently in Atlanta, GA. Throughout her career, she’s developed programs for students, educators, and community partners.
Barbara L. Hopkins, Esq, ASLA
Executive Director (Parkville, MD)
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Trained as both a lawyer & landscape architect, Barbara spent 13 years as ED of an urban land trust before joining the Exchange in 2022. Prior to that, she practiced law, consulted, & worked for 11 years at Baltimore City Community College, serving as vp for institutional advancement, among other roles.
Veronica Hotton, Ph.D
Education Manager (Portland, OR)
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Prior to joining the Exchange in 2023, Veronica (she/her) worked in nonprofit environmental education program management. She has also worked in interdisciplinary post-secondary education as well throughout the US and Canada. She holds a Ph.D in Education from Simon Fraser University and an M.A. in Geography from University of Hawaiʻi at Mānoa along with an undergraduate degree in Environmental Studies.
Megan Warner
Education Coordinator (Scottsdale, AZ)
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Megan (she/her) has worked in outdoor and environmental education across several states, including Arizona, Pennsylvania, Hawaiʻi, Colorado, and Oregon. She holds a B.S. in Sustainability from Arizona State University. Throughout her career, she has created programs on climate justice, waste prevention, and mindful activism. Megan enjoys rock climbing, trailrunning, and nature journaling.