By selling out national parks and other public lands, the Trump administration is endangering some of America’s great travel ...

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.

Of course, reducing health care pollution must never be achieved at the expense of equitable access to high-quality care, but these results suggest that costs and greenhouse gas emissions can be ...

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 ...

Memorial day weekend promises stunning space views. Here’s how to catch a breathtaking view of the Milky Way in Arizona this month ...

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

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

Plastic pollution and marine litter have emerged as pressing environmental challenges of our time, impacting the health of our ocean and ecosystems. With the relentless production and disposal of ...

It affixes a cost to the economy from one ton of carbon dioxide pollution, the main greenhouse gas that is heating the planet. When considering a regulation or policy to limit carbon pollution ...

The route is considered a lifeline for businesses that desperately need customers back in the canyon. The roughly hour-long ride from start to finish costs $1. It takes you to the beaches through ...

Air pollution is a threat to public health, especially for children whose lungs and immune systems are still developing, making them more susceptible to its harmful effects. Though there are many ...

BUTTE CREEK CANYON, Calif. - The Butte County Sheriff's Office has identified the woman that was shot and killed by a deputy after pointing a rifle at officers on Butte Creek Island Road on Thursday.