Science

Why “touching grass” is actually good advice when it comes to taking a break and restoring focus.

The Philly region’s MACH2 hydrogen hub promises to produce the fuel using renewable sources. The ARCH2, based in western Pa., would use fossil fuels to produce hydrogen.

The municipality has invested millions to pressure cook sewage sludge, in hopes of cutting its climate pollution.

About 10 years ago, writer Kim Frank set out to learn why wild elephants were trampling people in India. She revealed a complex human-wildlife conflict.

Cooler temperatures and a late season drought caused some trees to lose their leaves early, while also affecting the quality of fall colors.

Lincoln Financial Field in Philadelphia and Mercedes-Benz Stadium in Atlanta are two stadiums that are frequently recognized for their efforts to lower their carbon footprint.

The Department of Energy slashed more than $7.5 billion for clean energy projects in 16 Democratic-led states, yet Pennsylvania's "green" hydrogen hubs survive, for now.

Tales of adventure in search of lost and elusive species, from the golden toad to India’s wild elephants.

While living among chimpanzees in Africa decades ago, Goodall documented the animals using tools and doing other activities previously believed to be exclusive to people.

Starting Oct. 1, the Academy of Natural Sciences will only be open Friday, Saturday and Sunday. A restructuring of staff is expected to follow.

The arrangement is a way to sidestep Pennsylvania regulations that do not allow community solar in the state.

Though conservation efforts have helped to improve piping plover pairings, researchers say fledgling numbers are not keeping pace.