Health officials in California have discovered that extreme heat and wildfire smoke create a dangerous combination, resulting in higher hospitalization rates than if each hazard occurred separately. A study published in the journal Science Advances found that when people are exposed to both heat and smoke, their risk of hospitalization for cardiorespiratory causes increases by 7%. This additional harm disproportionately affects vulnerable communities, particularly those with lower incomes, denser housing, and less access to health insurance. Areas in California’s northern mountains and the Central Valley have experienced the most heat and smoke exposure, leading to greater health risks for residents. The study emphasizes the need for a more collaborative response to these challenges, as well as a fundamental rethinking of public policy. This is particularly important in light of the fact that both heat waves and wildfires have been increasing in frequency and severity in California. The study also highlights the impact of historical discrimination and structural racism on these communities. As climate change continues to create intersecting hazards, it’s crucial for policymakers to focus on implementing comprehensive warning systems and targeted interventions to protect vulnerable populations.
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