In 2023, climate planning was added to the Growth Management Act, directing jurisdictions to include Climate Elements in their next Comprehensive Plan update. Comprehensive plans guide day-to-day planning decisions through goals, objectives, and policies, and are updated regularly to reflect changes in population, employment and state laws. Guidance from the Department of Commerce, developed in partnership with Cascadia, provides a framework, resources, and tools to support jurisdictions in their climate planning effort.  

Comprehensive plans include many “elements” which outline how long-term development planning intersects with sectors such as housing, transportation, land use—and now climate.  The climate element includes two “sub-elements” one that identifies climate impacts and resilience strategies and one that addresses greenhouse gas emissions and emissions reduction strategies—though not all jurisdictions are required to complete emissions reduction sub-elements. Together, these sub-elements put cities and counties in Washington on a path towards reduced emissions and improved resilience.

Since its implementation, Cascadia has supported 25 local jurisdictions with climate elements—including Auburn, Kenmore, Renton, Marysville, Gig Harbor, Lake Forest Park, Spokane, Walla Walla, East Wenatchee, Washougal, Clallam County, Jefferson County, Kitsap County, Skagit County, Thurston County, Spokane County, San Juan County, Whatcom County, and the Benton-Franklin Council of Governments. We’ve also led efforts that support climate element development—such as Seattle’s Climate Vulnerability Assessment and emissions inventories for eleven of Washington’s largest counties on behalf of the Department of Commerce.  

We provide cross-cutting support to each jurisdiction, from conducting greenhouse gas emissions analyses and vulnerability assessments to integrating community input and equity considerations. We review current comprehensive plans and other climate action planning documents to identify opportunities to address climate change, resilience, and displacement. We develop strategies and evaluate them for impact, cost and feasibility, community support and opportunity for co-benefits—to ultimately develop climate elements that are cohesive, compliant, and ensure the greatest outcome for the communities they’re meant to serve.

This new requirement, and local jurisdictions’ eagerness to adopt climate elements, demonstrate Washington’s progress in elevating climate as a planning priority. We are proud to be leaders in implementing HB 1181, guiding and supporting local jurisdictions to develop effective and feasible climate strategies that make sense for them and their communities.  

Examples of our work include:

Since HB 1181 implementation began, Cascadia has supported 25 jurisdictions, and counting, to develop climate elements and integrate climate planning into comprehensive plans.

Explore more projects

Getting More Value from Your Waste Characterization Study

Waste characterization studies provide critical information for planning waste reduction and diversion efforts—but budgets are tight and it may feel like collecting enough data for high-quality insights is out of reach. Drawing on more than 30 years of waste characterization experience, Cascadia shares four ways thoughtful study design can

Helping Los Altos Businesses Put Organics Requirements into Practice

What does it take to turn statewide organics requirements into practices that work for local businesses and residents? Since 2024, Cascadia has partnered with the City of Los Altos and Mission Trail Waste Systems to provide hands-on outreach and technical assistance—and annual visits are showing signs of lasting progress.

Helping King County Residents Get Wildfire Ready

Wildfire happens in Western Washington—and preparation can make a difference. Cascadia worked with King County and regional wildfire experts to transform technical guidance into a locally tailored, user-tested toolkit that helps residents understand their risk and take practical steps to prepare their homes and households.

Mapping Municipal Solid Waste for Biofuel Potential

Cascadia was contracted by the U.S. Department of Energy to lead a multi-year effort to evaluate municipal solid waste (MSW) as a potential feedstock for nationwide biofuel production. Through field sampling, laboratory coordination, and analysis, the project is helping build a clearer picture of how existing materials management systems

Accelerating Preparedness with Community Resilience Hubs

A FEMA-funded regional pilot is reshaping how communities prepare for disasters across Puget Sound. By centering community leadership and investing in local capacity, Cascadia supported the collaborative design of resilience hubs that reflect local knowledge, strengthen connections, and expand access to critical resources in times of crisis.

Environmental Justice Assessment for the 2026-2030 PSP Action Agenda

Cascadia led the Environmental Justice Assessment for the Puget Sound Partnership’s 2026–2030 Action Agenda, engaging Tribes and community-based organizations across Puget Sound. This Assessment is required by Washington State’s HEAL Act, and engagement shaped dozens of new and revised strategies guiding Puget Sound recovery.