Thick smoke pouring in from Canada’s wildfires canceled baseball games and pushed air quality in major US cities to the worst in the world.

Clinical trials have demonstrated the health benefits of cannabis for certain conditions, but many aren’t testing smoked or vaped forms. Research on cannabis smoke is raising concerns.

Children with more secondhand smoke exposure tend to have higher lead exposure, as well, a study finds.

Air quality forecasting is getting better, thanks in part to AI. That’s good, given the health impact of air pollution. An environmental engineer explains how systems warn of incoming smog or smoke.

Unless Americans modify three things—smoking, drinking, and obesity—fatal coronary heart disease may rise after decades of decline.

Large stretches of the Arctic are carbon-rich peat bogs. As the region warms and dries, lightning strikes can spark underground fires that can burn for years.

Orangutans are vocal animals, so analyzing their calls during events like wildfires can indicate how smoke is affecting their health.

So much pollution goes into the air today that even without wildfire smoke, 99% of the global population breathes unhealthy air.

After wildfire smoke from Canada blanketed the East Coast of the US, experts explain the serious health risks smoke poses.

Fires in Canada have sent smoke across several US states, leaving cities like Denver with some of the worst air quality in the world – even far from the actual flames.