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Julie Rosenbach, Sustainability Director

As the Sustainability Director for the City of South Portland, Julie's role is to develop and adopt programs to address climate change, transition to clean, efficient, and renewable energy, facilitate waste reduction programs, improve alternative transportation options, minimize the use of toxics in the community, and educate people about sustainability.

She received her bachelor's degree in Russian History from the University of New Hampshire and a master's degree in International Environmental Policy from the Monterey Institute of International Studies. Prior to joining the City of South Portland, Julie worked as an Environmental Protection Specialist at the US EPA in Washington D.C. and as the Sustainability Manager at Bates College. 


Lucy Perkins, Sustainability Program Coordinator

Lucy joined the Sustainability Office to assist in the development of campaigns and outreach materials that educate the community about current sustainability initiatives and garner support for new policies and programs. Her efforts largely focus on the Energy and Water Use Benchmarking Ordinance, waste reduction outreach and education, and City energy management.

She earned a bachelor’s degree in Environmental Studies from Bates College. Before joining the City, she worked at a consulting firm in Portland and returned to Bates to further its mission in the Advancement Office. Lucy is proud to be a resident of South Portland and now working with a community close to her heart to promote economic well-being, strong community connections, and a healthy environment.


Cashel Stewart, Sustainable Transportation Coordinator

Cashel joined the Sustainability Office in January 2020 as the department’s first transportation-focused employee. He leads the Sustainability Office’s work in reducing greenhouse gas emissions associated with transportation and land use through the development and implementation of programs, projects, and policies identified in One Climate Future. Some of these projects include research and outreach related to electric vehicle/charging, designing complete streets and facilitating mode shift away from single-occupancy vehicles, and developing long-range plans that support sustainable, equitable transportation system growth.

He received his bachelor’s degree in Environmental Studies from the University of Vermont. Prior to joining the City, he worked for the City of Portland as a Transportation Planner. Cashel commutes to South Portland from Portland by walking, biking or telecommuting.