Many corporations are using Earth Day as an occasion to advertise green products. But for consumers, there's a subtle line between savvy marketing and greenwashing.
She scored big victories helping Boston restore its beaches and plan for climate change. Now, Vivien Li has come to Pittsburgh, and she has high hopes for where the city's riverfronts are headed next.
Industry leaders are looking to Pennsylvania's vast natural gas reserves to fuel a manufacturing reboot in Philadelphia. But is Philly's new "energy hub" just a pipe dream?
The Supreme Court may have thrown Obama's plan to cut carbon dioxide emissions into legal limbo. But that's not stopping Pennsylvania from taking its own steps to combat climate change.
