To check your state's air quality, visit AirNow's website, and plug in your zip code, city or state. Here's what to know as ...

Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in ...

Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in ...

The map shows the eight sectors that the Border Patrol divides the U.S.-Canada ... Partnerships and cross-sharing of information with Canadian law enforcement are critical when uncovering how ...

A warning not to cross the U.S. Canadian border in Derby Line ... and like many people here, she saw the border as just a line on a map. But now it's keeping former neighbors apart.

Stephen Hornsby, a professor of geography and Canadian studies at the University ... which itself was created by treaty in 1908 to survey and map the border. “It’s a very piecemeal process ...

When President Trump hosted Canadian Prime Minister Mark Carney ... which itself was created by treaty in 1908 to survey and map the border. "It's a very piecemeal process," Parmenter says.