Environment Canada issued an Air Quality Warning Friday morning for all of southeastern Manitoba. Wildfire smoke from ...

Wildfire smoke continues to hang over much of Manitoba, leading Environment Canada and Manitoba Health to issue an air ...

Smoke from wildfires burning in the northern Sacramento Valley may bring hazy skies and unhealthy air to parts of the Bay ...

Millions of people in California have been urged to avoid grilling on Wednesday amid concerns over high air pollution levels.

Ozone pollution is invisible,” says Kai Chen, PhD, co-faculty director of the Yale Center on Climate Change and Health, and that’s exactly why it is so dangerous. On July 9, air quality alerts ...

Arizona’s environmental agency must rewrite five sections of an air quality permit for the Hermosa Mine near Patagonia after the Environmental Protection Agency ruled many provisions were ...

Firefighters are working the uncontained Green Fire, Horse Fire and Helena Fire in the Shasta-Trinity forest. Here's what ...

A heat warning remains in effect for Sunday across much of Ontario, including the southern regions, with Environment Canada ...

The heatwave that brought 100-degree temperatures to the Philadelphia region in June also brought warnings that the air ...

The IMD has forecast light to moderate rain, accompanied by thunderstorms or lightning over the next three days.