Conservationists are trying to stop the spread of the invasive wavyleaf basketgrass in Pennsylvania's forests. A new exhibit of landscape paintings in Pittsburgh encourages rest and reflection. Concrete made with plants, like flax, has climate benefits. Several environmental groups in Pennsylvania are casting doubt on a report about landfill runoff released by state regulators. Three Mile Island is on schedule to receive nuclear material by the end of the year. A grandson and grandmother visit all 63 national parks together.

U.S. Steel is investing big money to modernize a mill in the Pittsburgh area. Some are worried about continued air pollution from the plant, while others in the area are excited about its economic impact. The data power of AI could help weather forecasters with some of their trickiest work, like tornadoes. A new book looks at the complexities of reintroducing large wildlife species like wolves and bison back to their original habitats. Pennsylvania has renewed its Solar for Schools program for a third time. Nonprofit environmental groups are seeking crowdfunding support for their legal challenge to a massive data center project in Indiana County. Our travel guide provides a glimpse of a rare bog habitat in the Laurel Highlands.

There's a movement to slow down data center development in Pennsylvania, but state lawmakers weren't ready to repeal a key tax exemption. People who live near a gas processing facility in rural Pennsylvania are against its plans to expand. Operations have been stopped at four injection wells for fracking wastewater in southeastern Ohio, at the request of state regulators. Forests in Allegheny and Fayette Counties are also now part of the Old-Growth Forest Network. A new book explores the beauty of Pennsylvania's natural wonders.