The National Science Foundation awarded a new Northern Arizona University professor $3 million to map food, energy and water supplies and show how they relate.
The EPA will pay environmental firms $85 million to assess the damage done by uranium mining companies over four decades. The agency announced the contract opportunities Aug. 31.
The public will get a chance to voice their opinions Aug. 29 and 30 about allowing a mining company to reopen three uranium mines on land surrounding Grand Canyon National Park.
Part 5: Laura Fallon shares her experience "going big" with well-known political columnist Molly Ivins, who had gathered a group of friends to raft down the Canyon as a final hurrah to celebrate her final session of chemotherapy.
Part 4: Betsy Harter has been guiding for 16 years, including in the Grand Canyon for Arizona Raft Adventures. But some of her most memorable moments came early in her career guiding canoe trips in Costa Rica.
Part 3: Brad Dimock tells the mysterious tale of Glen and Bessie Hyde who disappeared from their honeymoon trip down the Colorado River in 1928.
Christa Sadler has been guiding for three decades and she’s the author of There’s This River - Grand Canyon Boatman Stories.
A remote campground in southwest New Mexico has recently become a sanctuary for star gazers seeking a pristine night sky at a time when the rapid spread of light pollution prevents more than half of the world's population from seeing the Milky Way.
Photographer and former river guide David Edwards has been boating for more than four decades. He recalls one Grand Canyon river trip in 1984. Two groups had just finished a hike up Havasu Creek when it started to rain.
Thousands of small-scale coffee growers in Central America and Mexico are better off because of fair trade. But the system is fraying at the seams in one of the world's most important coffee-growing regions because of low prices, a damaging fungus and unscrupulous middlemen.