You may notice a slight haze in the sky on Wednesday across the D.C. area as smoke from Canadian wildfires brushes the region ...

More Republican lawmakers are calling out Canada because of wildfires sending smoke billowing across the international border ...

The letter calls for an investigation into Canada’s wildfire management practices and for potential remedies under international law.

An Ontario labour group says it is advocating for more robust worker protections amid growing health concerns over poor air ...

Big heat is heading for the northern tier of the Northeast, while humidity levels stay down for much of the Northeast.