LA County Adopts First Heat Action Plan

Los Angeles County is confronting a rapidly warming climate with the adoption of its first-ever Heat Action Plan, approved unanimously by the Board of Supervisors on February 3, 2026. The plan responds to longer, hotter, and more dangerous heat waves driven by climate change and sets out a long-term, countywide framework focused specifically on extreme heat rather than climate change broadly. Its three central goals are to create cooler outdoor spaces, ensure safer and cooler indoor environments, and improve public education about heat-related health risks.

Unlike more general climate action plans, the county’s Heat Action Plan zeroes in on heat as a distinct and growing hazard—one that is often overlooked because it causes little visible damage. As reported by Erin Stone, heat already contributes to more than 200 deaths each year in Los Angeles County and thousands of emergency room visits, with inland and valley communities experiencing the greatest impacts. Since the 1980s, summer temperatures have risen by an average of three degrees, and projections show increases of up to eight degrees in some areas by mid-century if global emissions are not dramatically reduced.

The plan also highlights how heat affects daily life in less obvious but deeply consequential ways. Nights are warming faster than days, disrupting sleep and worsening health outcomes; more than 40% of county residents surveyed reported difficulty sleeping during very hot nights. County officials emphasize that heat is an “invisible threat”—experienced everywhere, but not equally—and one that lacks formal disaster designation at the state or federal level, limiting access to funding. By coordinating efforts across departments, the county hopes the plan will strengthen public health protections and unlock additional resources.

Building on years of prior analysis, the Heat Action Plan outlines various strategies, including adding shade structures at all county bus stops, expanding tree canopy in unincorporated areas, replacing heat-absorbing pavement at schools and public spaces, enforcing indoor temperature standards for rental housing, reducing energy burdens for low-income households, and expanding cooling centers. Researchers involved in the plan note that its people-centered approach—and its innovative use of shade data alongside temperature data—positions Los Angeles County as a leader in planning for life in a hotter future.