A haunting map from the Cold War era forecasted that vast areas of the U.S. would be covered in radioactive fallout in the ...

President Donald Trump is again banning people from countries his administration deems dangerous from coming to America.

An air quality map shows conditions improving in the U.S. Friday as smoke from the Canadian wildfires subsides.

With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke ...

Dust from the Sahara desert will cloud the skies of the US southeast this week in an annual weather event that doesn't always ...

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions ...

Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

Auroras may be visible from Alaska to Pennsylvania as Earth reverberates from the impact of a speedy solar storm.

The African dust approaching the United States this week raises many questions. A meteorologist explains what you need to ...

The plume is forecast to move northwest and reach Florida mid-week, then hit other states including Georgia, the Carolinas, Texas and Louisiana by Friday, radar shows.

As hundreds of wildfires continue to burn in Canada, the smoke from the flames is bringing potentially dangerous air quality to parts of the United States.