A chilling Cold War map showed how up to 75% of the U.S. population could be wiped out in a nuclear war with radioactive ...

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

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

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

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

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

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

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