air quality

Throughout May, more than 140 wildfires have burned across Alberta and British Columbia. On Sunday, the thick, ashy haze billowing from these infernos drifted across the U.S. border, casting a blanket of smoke over Minnesota and Wisconsin, which eventually made its way to Iowa and other parts of the Midwest earlier Tuesday morning.  Counties throughout […]

When the town of Clairton, Pennsylvania, was founded a few miles south of Pittsburgh at the start of the 20th century, the only thing there was a steel mill. “At the beginning of 1901, the town of Clairton was a field,” a newspaper article from 1904 explained. “The Clairton steel mill first began operations in […]