Plants, so often the minor characters in stories about charismatic living things, are the stars of this vividly illustrated ...

Republicans said their policy bill promised "economic freedom," but energy advocates said it would halt Arizona's clean ...

Instead of looking to the future, the Expo‘s gathering of 158 nations exchanging visions of peace and progress feels stuck in ...

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.

Dam maintenance and non-native fish reduction efforts led the government to reject an environmentally restorative flood in ...

A 92-year-old man is now the oldest person on record to have conquered the Grand Canyon's 24-mile, rim-to-rim hike. Guinness World Records confirmed the feat on Tuesday, about two months after ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...

It's tucked away in the remote high desert country of southeastern Utah, where geology dazzles with the night skies.

One of the more controversial additions to the Grand Canyon's surroundings, the Grand Canyon Skywalk is a large, semicircular bridge with a transparent glass floor, allowing tourists to walk out ...

Illegal' 'Tip creep' is pushing some customers to leave smaller tips, and driving others to avoid businesses that ask for ...

The House and Senate both voted to loosen regulations on air pollutants like dioxin and mercury, which are associated with ...

Southeast Asia Could Prevent Up to 36,000 Ozone-Related Early Deaths a Year by 2050 With Stricter Air Pollution Controls May 21, 2025 — A study has found that implementing robust air pollution ...