Canadian wildfire smoke causes dangerous air quality in 12 Midwest states. Health alerts urge 22 million residents to stay ...

Parts of the Greater Toronto Area (GTA) are under an air quality warning on Monday alongside an ongoing heat warning in the region, Environment Canada says.

As of early Monday morning, the Air Quality Health Index for Greater Sudbury is listed as being at 9, or High Risk, as the ...

A fast-moving wildfire destroyed a historic lodge and dozens of other structures on the Grand Canyon’s North Rim. Arizona Governor Katie Hobbs called on the federal government to investigate the ...