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

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, ...

The U.S. Coast Guard says rotten wood and poor inspections appear to have played roles in the collapse of the mast of a ...

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 ...

"International and domestic travelers are essentially redefining how they discover the U.S.," an expert told Newsweek.

Canadian wildfire smoke is drifiting across Michigan. As of July 31, the entire state is under an advisory for unhealthy air.

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

The biggest event in harness racing celebrates a centennial anniversary this weekend with the 100th running of the ...

Dozens of states have experienced an unusually humid July. Find out where yours ranks and why it’s been so muggy.

Climate change is exacerbating extreme heat waves across the country, burdening families, putting Americans’ health at risk, ...