Six members of Congress from Wisconsin and Minnesota have asked Canada to say how it plans to tackle the blazes and reduce the haze billowing south.

© Jesse Winter/Reuters

The Calgary Stampede, an event that started more than 100 years ago, has grown into one of the world’s most popular rodeos and a reflection of Western Canada’s culture.

© Amber Bracken for The New York Times

Calgary removed fluoride from its water supply in 2011, but residents voted to reverse course after studies linked the move to worse dental health among children.

© Dave Chidley/Agence France-Presse — Getty Images

Sweltering temperatures not seen in Toronto in nearly a decade have prompted health alerts, pool closures and warnings to students to expect “uncomfortable conditions.”

© Frank Gunn/The Canadian Press, via Associated Press

As Canada endures another heavy wildfire season, a group of resourceful farmers in British Columbia became an ad hoc fire brigade to help a neighbor.