Analysis - The rise in vaccine-preventable diseases around the world is threatening decades of progress in public health and putting millions of people at risk.

Engines rumbled and crowds gathered over the weekend at the Keystone Centre grounds as the Western Canadian Nationals Car ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring ...

It’s a familiar summer sight by now, and sometimes a familiar smell. The Pennsylvania Department of Environmental Protection ...