A historian once suggested a Liberty Tree replace Uncle Sam as America’s symbol of identity. Now, Centre County has its own ...

The highest recorded elevations of Jeffrey pines provide new evidence of a warming climate in the High Sierra. UC Davis ...

The nonprofit Trust for Public Land bought the land from timber giant Weyerhaeuser Co. using public and private funds and ...

Scientists have found that a mere 30 species of trees in the Cerrado—the world's largest and most floristically diverse ...

As it has done every 17 years since, Brood XIV died off just six or so weeks after it emerged, but not before laying billions ...

While many residents have commended Duquesne Light’s efforts to bring in 600 additional crews, frustrations linger over communication gaps during the lengthy process.

The purchase protected forested wetlands that absorb stormwater and protect groundwater. The property east of Wilbur Hill ...

We've submitted our latest Water Quality Assessment to EPA and we've opened the Call for Data to work on the next assessment of state waters.

Many of the Maine woods have been cut so hard that reshaping them for carbon storage will be neither quick nor easy.

The US still dominates the global economy as the richest country in the world with a gross domestic product of $29 trillion — ...