The sternly worded statements and letters are filled with indignation and outrage: Republican U.S. lawmakers say Canada has ...

Air quality remains poor in parts of Canada as wildfire smoke travels along the jet stream — with Europe now in its path.

Hundreds of wildfires burning in Canada are undermining U.S. air quality across the Upper Midwest and Northeast, making skies hazy from Detroit to New York City and even prompting a ground stop at ...

Smoke from wildfires burning in Canada has triggered air quality alerts over the border in the United States. Several blazes continued to rage across Canada on Saturday, sending smoke wafting over ...

Some Team P.E.I. athletes are back on the Island after taking part in the Canada Games, where their competition was ...

Smoke from Canadian wildfires set off multiple air quality alerts Thursday across the Midwest and the Canadian prairies, enveloping Minnesota and stretching eastward to Toronto.

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states from Wisconsin to Maine.

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air quality there. On August 1 conditions are particularly bad in Minnesota ...

Ashlee Rezin/AP / AP Hazy skies hung over parts of the midwest and northeastern U.S. on Sunday, caused by smoke drifting across the border from hundreds of wildfires in Canada. Canada is ...

Canada wildfire smoke brings unhealthy air to large swaths of the Midwest Air quality alerts were in effect in Iowa, Minnesota, Wisconsin and Michigan.