On a trip to Wyoming, a novice learns to climb a frozen waterfall, an activity that takes focus, fearlessness and a good ice ...

Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals ...

Scientists have long relied on tree rings to learn about ancient solar storms—rare bursts of high-energy particles from the ...

Discover how to tie a reliable stopper knot, an essential safety tool for arborists and tree climbers using SRS or SRT ...

This video shows how to tie the RBG friction hitch step by step, designed specifically for arborists and tree climbers. Clear ...

Sudden or severe cold temperature can cause trees to experience "frost crack." NPR's Scott Simon talks with Bill McNee of the ...