(NEXSTAR) – Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that’s not a great sign. As vaping becomes a more common replacement for ...

The smoke is forecast to dissipate over the weekend. Millions of Americans are on alert for unhealthy air quality as smoke from wildfires in neighboring Canada drifts to the United States. Wildfires ...

Wildfires don't just scorch landscapes. Some are so intense that they create their own weather systems, such as pyrocumulonimbus thunderstorms that loft smoke up to 10 miles (16 kilometers) into the ...