Pittsburgh-area schools have invested big money in modern artificial surfaces for football and soccer fields. But there's growing concern that they may pose a health risk.
Leaves have already gone red, orange and yellow in much of the higher elevations of northern Pennsylvania. But the southwestern and central parts of the state should get their turn starting this weekend.
The U.S. Forest Service inventories the types and condition of trees all across the country. And now, the agency is expanding that effort to better understand our urban forests.
In an era of dwindling public revenues, Allegheny County has had to get creative to keep one of the largest county park systems in the Northeast looking like one of the best.
The Flight 93 memorial in western Pennsylvania is one of the most unique national memorials, harnessing the power of nature to tell a nuanced story of tragedy and renewal.
Twenty years ago, Gettysburg was so overgrown, visitors literally had to trudge through forests to experience legendary spots on the battlefield. So the National Park Service decided to do something (epic) about it.
