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

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.

Los Angeles and much of Southern California were met with a regional air quality alert on Saturday, following July 4th ...

Delhi's air quality remains "satisfactory," with light rain recorded and a yellow alert for possible moderate rainfall on ...

A regional air quality alert was issued for much of Southern California as harmful levels of fine particle pollution spread ...

Canada's environment ministers met in Yellowknife and have endorsed stronger air quality standards for fine particulate ...