How record wildfires are harming human health
Nature reports: On a cool September morning in San Francisco, a group of firefighters packed their gear into a bright red van. The sickly sweet odour of pine resin from a distant blaze hung in the air as the crew prepared to battle the rapidly growing Dixie fire, on its way towards becoming the largest single wildfire in California’s history. Sweeping across the Sierra Nevada mountains, it would come to scorch more than 3,900 square kilometres before crews fully contained…