The study focused on fine particulate matter or PM 2.5 — the microscopic pollutant in wildfire smoke that can lodge deep in the lungs. Short-term ex

Wildfires driven by climate change contribute to as many as thousands of annual deaths and billions of dollars in economic costs from wildfire smoke in the United States, according to a new study.

A new study links 15,000 U.S. deaths to wildfire smoke made worse by climate change, with billions in economic costs.