Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Multiple states bordering Canada could feel the greatest impact of a 35 percent tariff on Canadian products starting August 1 ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

Since the weekend, several major fires have been raging across Canada’s central and western provinces. The smoke from those fires is now drifting south across the U.S. border and is ...

President-elect Trump on Tuesday again suggested that Canada should be added as the U.S.'s 51st state, sharing maps showing Canada as part of the U.S. Trump shared a pair of posts to his social ...

WASHINGTON (AP) — The U.S. cities most vulnerable to a trade war with Canada turn out to largely be in the states that helped return Donald Trump to the White House — a sign of the possible ...