Wildfires in Canada, the United States and Mexico often send smoke throughout the continent. Smoke forecast Light Medium ...

Only 7 states have enforceable heat standards for workers in place. More may follow soon, as extreme heat becomes a bigger ...

The State Department has warned Americans not to travel to 23 countries amid war, terrorism, crime and unrest risks.

Johns Hopkins University has launched a data-rich, U.S.-focused coronavirus tracking map, adding to existing efforts that have made the university a go-to global resource for tracking confirmed cases ...

When the United States officially emerged as an independent country after the signing of the Treaty of Paris in 1783, it was a nation rich in promise but disstructured in design. Its boundaries were ...