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Read the Final Plan here!


The City of South Portland partnered with the City of Portland to develop a regional vision for reducing greenhouse gas emissions and improving the resiliency of our communities. Both cities  adopted aggressive climate goals: to transition municipal operations to 100% clean renewable energy by 2040, and to reduce community wide greenhouse gas (GHG) emissions 80% by 2050. Given the alignment of our goals and our close proximity, we have chosen to collaborate on the development of One Climate Future, a joint Climate Action and Adaption Plan. 

Planning Process

Producing one plan emphasizes the shared nature of the planning process, and exemplifies a new model for cities working together to address climate change. The plan was developed through a stakeholder process that engaged individuals, community groups, and local businesses, and draw on the expertise of recognized regional leaders. Equally important as the actions it identifies, the plan is intended to mobilize community engagement and build support for climate action. This collaborative effort resulted in a transformative plan.

One Climate Future includes nearly 70 ambitious yet achievable strategies across four focus areas: buildings and energy, transportation and land use, water reduction, and climate resilience. These strategies will entail local action, regional partnerships, and state coordination.

Get Involved

Check out the website to learn more about One Climate Future goals, process, progress, and upcoming events.

Sign up for the One Climate Future newsletter and stay up to day on updates, events, and activities near you.

Click here to see a video of the project launch event.

Background & Helpful Links

Resolve to Join the Mayors Climate Commitment in Support of Paris Agreement goals (July 10, 2017)

Project kick-off meeting at GMRI (February 22, 2018)

PPH article "Portland, South Portland plan to fight against climate change" (March 4, 2018)

Resolve to adopt two climate goals: to reduce greenhouse gas emissions citywide 80% by 2050 and transition to 100% clean energy for municipal operations by 2040 (April 17, 2018)

Appointment of Project Steering committee (April 17, 2018)

RFP to hire a consulting team to develop the plan (July 31, 2018)

Linnean Solutions - chosen proposal (September 5, 2018)

Council Order #84 adopting One Climate Future (October 10, 2020)

One Climate Future Appendix A- GHG Inventories Memo

One Climate Future Appendix B- Emissions Modeling Memo

One Climate Future Appendix C- Resilience Zoning Memo