Cameron Duke of MinuteEarth explained how certain rivers allow for canyon formation due to specific geological conditions.

In 2018, the United States Geological Survey reported it estimated there was 680,000,000 acre feet of brackish water under Arizona. That represents what Arizona uses in 100 years.

“We’re used to long dry stretches out here in the Southwest due to our seasonality and precipitation,” said Michael Crimmins, ...

"The Grand Canyon is an epic Rosetta Stone for geology," Denver Museum of Nature and Science geologist James Hagadorn said.

Armed with advanced technology, decades of expertise, and insights from an NSF-funded study, a multi-institution team of ...