A video posted to social media this month captured two men destroying ancient rock formations at Lake Mead National Recreation Area in Nevada. National park rangers are asking for the public’s help in identifying the visitors, who could face federal charges for vandalizing protected land.

Earlier this month, a video posted to social media captured two men destroying ancient rock formations at Lake Mead National Recreation Area in Nevada. National park rangers are asking for the public’s help in identifying the visitors, who could face federal charges for vandalizing protected land.

A push for nuclear power is fueling demand for uranium, spurring the opening of new mines. The industry says new technologies will eliminate pollution from uranium mining, but its toxic legacy, particularly in the U.S. Southwest, leaves many wary of an incipient mining boom.

This week the Environmental Protection Agency announced a ban on the use of chrysotile asbestos, the most common form of asbestos still used in the United States. Such a ban has been a long time coming, according to experts who contend that there are no safe levels of asbestos, a substance that still kills 40,000 people annually in the U.S. In all, over 50 countries have already banned the mineral, known to cause a laundry list of cancers including mesothelioma, a rare cancer of the membranes that line the lungs and abdomen. It’s also been shown to cause lung, larynx, ovarian, stomach, and colon cancer.

Modern humans dispersed from Africa multiple times, but the event that led to global expansion occurred less than 100,000 years ago. Some researchers hypothesize that dispersals were restricted to "green corridors" formed during humid intervals when food was abundant and human populations expanded in lockstep with their environments. But a new study in Nature, including ASU researchers Curtis Marean, Christopher Campisano, and Jayde Hirniak, suggests that humans also may have dispersed during arid intervals along "blue highways" created by seasonal rivers. Researchers also found evidence of cooking and stone tools that represent the oldest evidence of archery.

Modern humans dispersed from Africa on multiple occasions, but the event that led to global expansion occurred less than 100,000 years ago. Some researchers hypothesize that dispersals were limited to "green corridors" formed during wet intervals when food was plentiful and human populations expanded at the same rate as their environment.

The record-breaking rain soaking the Southwest U.S. in recent weeks still won't be enough to eliminate the megadrought status in the notoriously arid region completely, according to researchers.

Silver Peak, which began mining lithium in the 1960s, won’t remain the only U.S. lithium mine for long.

An investigation from the Howard Center at Arizona State University uncovered the coming electric battery revolution in America will require billions upon billions of gallons of water to mine lithium. Many of the new U.S. mines will be located in the drought-prone American West.

Called the Melanesian Border Plateau, a team of international researchers determined the more than 85,00-square-mile structure was created when dinosaurs ruled the Earth 145 to 66 million years ago and is still growing to this day. Researchers used seismic data, rock samples and computer models to identify four periods of volcanic eruptions deep beneath the surface that started 100 million years ago.

The Melanesian Border Plateau was formed in four separate stages, which is pretty damn unusual.

Scientists pieced together the history of a huge Pacific plateau and found a complicated story.