Biodiversity is critical to humanity's sustainable future, but global species extinction is accelerating due to environmental ...

China's proposal to construct a colossal dam on the Yarlung Tsangpo River in Tibet has sparked alarm across South Asia due to ...

The construction of a dam effectively gives China control over the river’s flow. This could lead to sudden water shortages or ...

This brave cleaning crew hangs from the Grand Canyon west rim's Skywalk twice a year.

A severe hailstorm with 80 mph winds and tennis ball-sized hail prompted Canyon to issue a second disaster declaration in just over a month.

Hells Canyon, the deepest river gorge in the country, has always been a marvel for geologists, archeologists and travelers. But researchers are just now learning about the origins of the canyon ...

Thousands of hikers take on the Grand Canyon’s Rim-to-Rim trek every summer. This year, however, a major trail closure has some experts raising serious safety concerns.

Beloved Washington doctor, Dr. Dennis Smith, died during a Grand Canyon hike. Known for his fitness and orthopedic work, his death may have been a freak accident, a colleague said.

This one-day itinerary includes the best of Grand Canyon's South Rim, including El Tovar, Mather Point, Bright Angel Trail and Desert View Watchtower.

A 74-year-old man from Washington state died during a hike in the Grand Canyon, authorities said.