New research from engineers at Washington University in St. Louis reveals the surprising pollution face masks can cause.

The National Park Service calls on visitors to stay at least 25 yards (23 meters) from wildlife, and 100 yards from bears and ...

While there's also a stronger push for electric vehicles, brake dust pollution is still a concern. That's because cars — ...

An overview of the Rhine River, including its commercial importance and the impact of an intense heatwave on its water levels ...