Washington's 2026 Legislative Session: Climate and Health Wins, Setbacks, and the Fight Ahead

WPSR members mobilized across air quality, extreme heat, and climate investment protections. Here's what passed, what didn't, and what it means for our climate and our health.

Washington's 2026 legislative session tested our state's commitment to protecting public health through climate action. Against a challenging budget landscape and organized opposition from fossil fuel interests, Washington Physicians for Social Responsibility (WPSR) mobilized health professionals to defend critical climate investments and advance policies that directly protect patients from air pollution, extreme heat, and environmental health threats.

In February, over 30 WPSR members joined our annual Lobby Day, meeting with more than 25 legislative offices to discuss how climate policies save lives. We emphasized that climate action is preventive medicine. From reducing asthma-triggering diesel pollution to ensuring renters can cool their homes during deadly heat waves, the bills we advocated for would deliver tangible health benefits to Washington communities.

This session also marked a major milestone for WPSR’s climate program. Working alongside partners, WPSR helped lead and steer SB 6200—protecting tenants’ ability to install cooling in their homes—through the legislative process and across the finish line.

The session delivered important victories, including passage of our renter cooling bill and advancement of clean energy programs. We also witnessed troubling diversions of Climate Commitment Act funds away from health-protective programs.

Here's what happened across our priority areas.

Extreme Heat: Protecting Renters and Building Statewide Preparedness

Extreme heat is the leading cause of weather-related deaths in the United States. Washington's 2021 Heat Dome killed an average of 18 people per day, making it the deadliest weather event in state history. Heat exposure increases risk of heart attacks, kidney failure, respiratory illness, and long-term neurological damage, while worsening mental health stress and anxiety.

This session, WPSR advanced a coordinated policy approach to treat cooling as basic health protection.

What Passed

• SB 6200 – Right to Install Cooling
  Ensures renters can install portable cooling devices without unreasonable barriers. This is a critical step toward preventing indoor heat-related illness and death.

What Didn’t Pass

• HB 2265 – Protecting tenants from extreme heat
  A more comprehensive bill addressing cooling standards and tenant protections.

• HB 2183 – County-Level Heat Response Plans
  Would have improved coordination and preparedness during extreme heat events.

Health professionals testified that these bills would prevent heat-related deaths and hospitalizations by empowering renters to protect themselves when temperatures spike. SB 6200 passed with bipartisan support, recognizing that access to cooling is a basic health necessity, not a luxury

What it means
SB 6200 represents a shift in how Washington discusses extreme heat, but is not the finish line. Future work will need to build toward broader protections, including housing standards and coordinated public health response.

Air Quality: Reducing Pollution That Drives Disease

Air pollution is a major driver of heart disease, lung disease, stroke, and premature death. These harms fall disproportionately on communities already overburdened by pollution. Indoor air quality is also a critical but under-addressed driver of health outcomes, particularly in housing, healthcare, and school settings. The healthcare sector itself contributes approximately 5% of global greenhouse gas emissions, underscoring both the responsibility and opportunity for health systems to lead in pollution reduction.

WPSR prioritized policies that reduce harmful emissions, improve indoor air quality, and center health in environmental decision-making.

What Passed

• HB 2338 – Community-Scaled Weatherization
  This bill expands weatherization pathways to improve indoor air quality, reduce energy burden, and deliver health benefits at scale. Better-sealed homes mean fewer asthma triggers from outdoor pollution infiltration, lower exposure to indoor combustion pollutants, and reduced energy costs for vulnerable households.

What Didn’t Pass

• CURB Pollution Act (HB 1303)

• At-Berth Regulations (HB 1689)

• Low Sulfur Shipping Fuels (HB 1652 / SB 5519)

• Anesthesia Emissions Reduction (SB 5236)

What it means
Despite strong health and equity arguments, many of the most impactful air quality policies did not advance this session. Fiscal constraints and competing priorities limited progress, but these remain core areas for continued advocacy.

Climate Commitment Act: Defending Health-Protective Investments

The Climate Commitment Act (CCA) is one of Washington's most powerful tools for improving public health. CCA-funded programs reduce air pollution, support climate resilience, lower energy costs, and direct investments to overburdened communities experiencing the greatest health harms from diesel pollution and industrial emissions.

The 2026 budget cycle brought troubling news for climate and health advocates. As detailed in a coalition analysis led by Washington Conservation Action, lawmakers diverted significant Climate Commitment Act funds away from their intended climate and health purposes.

What Happened

• Approximately $500+ million in CCA funds were diverted to address the state budget shortfall.

• Lawmakers committed to paying these funds back in the future.

Key Diversions:

• $200 million swept from CCA into the general fund rather than invested in pollution-reduction programs

• Transportation project funding shifted from climate-focused programs to conventional highway spending

• Clean energy incentive programs saw reduced allocations despite strong demand

Health professionals testified repeatedly that CCA funds deliver measurable health benefits: fewer asthma attacks, reduced cardiovascular disease, lower healthcare costs, and lives saved. Diverting these resources undermines both immediate health protections and our state's ability to prevent worsening climate-driven health impacts.

WPSR-Supported Legislation: Building a Healthier Washington

In addition to core priorities, WPSR supported a broader set of policies that contribute to climate mitigation, environmental health, and community resilience.

What Passed

• HB 1903 – Energy Assistance Program
  Expands support for low-income households struggling with energy costs, helping prevent dangerous trade-offs between heating, cooling, food, and medicine.

What Didn’t Pass

• Passenger Rail Advisory Committee (HB 2092)

• Washington Coal Act (SB 5439)

• Bottle Bill (HB 1607 / SB 5502)

• Plastic Bag Legislation (HB 2233 / SB 5965)

• Microplastics in Washing Machines

• Data Center Energy Accountability (HB 2515 / SB 6171)

What it means
Many of these policies represent upstream, long-term solutions for reducing emissions, improving waste systems, and shifting infrastructure. While they did not pass this year, they remain important components of a comprehensive climate and health strategy.

Looking Ahead

This session demonstrated both what is possible and what remains to be done.

WPSR helped lead the passage of a landmark cooling policy, strengthened energy assistance for vulnerable households, and brought a health voice to legislative debates across issue areas. At the same time, major opportunities to reduce pollution and strengthen climate investments were left on the table.

As climate impacts intensify, the role of health professionals in policy advocacy will only grow more important. WPSR will continue working to ensure that Washington’s climate policies are grounded in science, centered on equity, and designed to protect health.