Scientists have reported a new discovery exposed by the ongoing water level crisis in Lake Mead in the United States of America.

Vaccinated Americans aren’t lining up for the latest booster the way they did for their first few jabs.

Record-low water levels in Lake Mead in Nevada and Arizona have exposed volcanic ash from eruptions 12 million years ago as far away as Idaho, Wyoming and Colorado. The discovery may help investigators better understand future ashfall risks, researchers at the University of Nevada-Las Vegas said in a recent study.

From extreme heat to severe drought to flooding, the effects of climate change have steadily produced troubling ripple effects around the globe, including food insecurity and natural disasters.

The water levels of California’s most polluted lake, the Salton Sea, have been dropping for more than two decades, exposing people in nearby communities like Riverside to toxic chemicals.

Record-low water levels in Lake Mead in Nevada and Arizona have exposed volcanic ash from eruptions 12 million years ago as far away as Idaho, Wyoming and Colorado.

As Lake Mead's water level continues to drop, scientists at UNLV have discovered sedimentary rock laced with volcanic ash that hasn't been visible since the 30s.

When Oscar Toro started volunteering with The Salvation Army of Southern Nevada through his school, he didn’t know much about the organization. But six weeks later, the University of Nevada, Las Vegas (UNLV) medical student was committed to continuing his work with The Salvation Army and also joined Echelon, its emerging professionals arm.

Lake Mead’s falling water level has exposed several shocking things in recent months – previously sunken boats, old war ships and human remains. Now scientists are reporting a new discovery on Lake Mead’s dry bed: rocks laced with volcanic ash that rained down on southern Nevada during explosive eruptions roughly 12 million years ago.