"Canada's record-breaking 2023 wildfires exposed more than 350 million people in North America and Europe to air pollution that likely contributed to tens of thousands of deaths, according to new estimates published Wednesday."

"Herbicides in forestry kill broadleaf vegetation that compete with softwoods, which are more flammable" 

"In the rush to put out wildfires, hundreds of millions of litres of fire retardant are dropped on forests across North America. New research shows the effects they can have on water and ecosystems — especially when accidents happen"

"The Trump administration is also looking to revive mining in the popular wilderness area" 

"Wildfires caused by arsonists or thunderstorms and fanned by a heatwave and strong winds wreaked destruction across southern Europe on Wednesday, burning homes and forcing thousands of residents and tourists to flee."

"The National Weather Service announced air quality alerts in 10 states Tuesday as smoke from the Canadian wildfires continues to spread across the U.S. border."

"Researchers in Washington and British Columbia say they have solved a deadly mystery that has stumped scientists for more than a decade. They have identified the pathogen behind one of the world’s biggest disease outbreaks: a wasting disease that has turned billions of sea stars into goo — from Alaska to California."

"There has been evidence for a few years that levels in the Great Lakes and St. Lawrence were higher than the national average, but not high enough to cause immediate alarm. But what is considered safe is evolving, as research increasingly links forever chemicals to an array of potential health risks, such as cancer and reproductive issues."

"A growing body of research shows the cascading health impacts of wildfire smoke, from cognitive decline to heart issues."