A Georgia grandfather sacrificed his life to save his twin granddaughters from being struck by a fallen tree limb, his son-in-law told ABC News.

A mountain biker making his way through a trail in Squamish, British Columbia, took a hilarious tumble into a tree, with the moment captured on film by a friend. Posted to Instagram on May 20, the ...

Summer opens clear, bright and twittering on the Gunflint Trail. It is a perfect morning: sunny with a cool breeze; birds ...

Celebrate National Trails Day with some of the best hikes in the U.S.—from slot canyons to grassland wanders to secluded ...

Tree at area park, cut down after damage from recent ice storm, was Ryan Capisciolto's favourite; he posed with it every year of his life ...

The future of the European forests is at risk due to our changing climate. To observe the effects of climate change, we often ...

Tree at Radenhurst Park, cut down after damage from recent ice storm, was Ryan Capisciolto's favourite; he posed with it ...

Sleeping bag? Check. Tent? Check. Marshmallows? Check. Closures and fire restrictions? Double check. If you're planning to visit one of New Mexico's five national forests this weekend, check ...

One of the largest tree die-offs in California history, which has turned evergreen forests into a bleak canvas of oranges and browns, appears to be subsiding after nearly a decade of wreckage. New ...

The decades-old tree conservation program was put in place in the 1940s to identify and conserve the nation’s largest ...

A once towering Northern Catalpa tree that stood along a rural highway in Menard County was toppled by a recent storm.

but other giant sequoias are in big trouble. With its crown on fire from the Windy Fire, a giant sequoia tree rains embers onto the forest floor in the Long Meadow Grove in the Sequoia National ...