Los Angeles Mayor Karen Bass has qualified for the run-off election in the city’s mayoral race, according to primary results released late Tuesday. Bass, a Democrat and former congresswoman, will face either real estate developer Rick Caruso or another contender in the November general election. The outcome carries implications not just for local governance but for the broader climate agenda, as Los Angeles grapples with rising temperatures, water scarcity, and the transition to renewable energy.
Bass, who assumed office in 2022, has positioned herself as a pragmatist on environmental issues. Her administration accelerated the city’s commitment to 100% clean energy by 2035, a target more aggressive than California’s state mandate. But the path is fraught: Los Angeles County recorded its hottest year on record in 2024, with average temperatures 2.3°C above the 20th-century baseline. The city’s water supply, dependent on the Colorado River and Sierra Nevada snowpack, faces chronic stress. Data from the Los Angeles Department of Water and Power shows reservoir levels at 62% of capacity, down from 78% five years ago.
In a statement, Bass emphasised the urgency: “We cannot afford incremental progress. The climate crisis is here, and Los Angeles must lead with action, not words.” Her opponent, Rick Caruso, a billionaire developer, has focused on public safety and homelessness, though he supports renewable energy investments. The run-off will test whether climate policy remains a top-tier concern for voters amid other pressing issues.
From a planetary perspective, Los Angeles is a microcosm of the larger energy transition dilemma. The city’s carbon footprint per capita remains high at 9.2 tonnes annually, compared to the national average of 15 tonnes. But its building electrification programme, which mandates all new constructions be all-electric by 2027, has faced resistance from natural gas interests. The run-off will decide whether Bass can continue her push for stricter emissions caps on commercial buildings, a policy that could prevent an estimated 1.8 million tonnes of CO2 equivalent by 2030.
The biosphere is watching. California’s coastal ecosystems, already stressed by marine heatwaves, depend on state-level action. Bass’s victory could accelerate offshore wind development, with federal leases for the Morro Bay Wind Energy Area expected to be auctioned next year. Her opponent’s record offers less clarity; Caruso’s development firm has been criticised for building in fire-prone zones, though he has pledged to invest in fire resilience.
Technological solutions are central to the debate. Los Angeles is testing direct air capture facilities and expanding its electric vehicle infrastructure. The city’s bus fleet is 43% zero-emission, but freight trucks remain a major source of NOx emissions. Bass has proposed a zero-emission zone at the Port of Los Angeles by 2030, a critical step given that port activity accounts for 25% of the region’s diesel particulate matter.
The run-off is scheduled for 11 November. Voter turnout in the primary was just 34%, a worrying sign for democratic engagement in a time of climate stress. As the planet warms and resource pressures mount, the choice between incremental reform and systemic change in America’s second-largest city will echo far beyond its borders.
