Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

Brand USA, the official destination marketing organisation for the United States, has wrapped up its three-city roadshow.

More than 9 million people were told to avoid the water during peak summer recreation because of "life threatening" ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

Hundreds of thousands of people are treated for Lyme in the United States each year — and that number is on the rise.

Lake Erie is the shallowest of the Great Lakes but bests its cousins in several other ways. Find out more about all the Great ...