State officials from Maine to New York issued alerts for fine particulate matter, a toxic byproduct of wildfires that is small enough to be inhaled.

Our northern neighbors sing about the "True North, strong and free" on Canada Day. Here's why—and when Canada became a ...

Ottawa, Ontario, is often overlooked for Montreal and Toronto, but it's the perfect summer break for both nature and city ...

Canada, the second-largest country in the world, has a surprising demographic pattern: 70% of its population lives south of a specific line, far closer to the U.S. border than the northern expanses of ...

The Trump administration is set to release a new artificial intelligence blueprint on Wednesday that aims to relax American ...