In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

A recent study by researchers at Columbia University revealed the states that had the highest levels of deadly arsenic in ...

Saturday’s quakes occurred roughly 30 miles northwest of Hayes, Kansas. The first occurred at 2:14 p.m. Central Daylight Time ...

Researchers found that certain parts of the US are exposed to high levels of the toxin, putting the purity of local tap water ...

Scientists found millions of Americans may be regularly exposed to dangerous levels of arsenic, and they may not even know it ...

A version of this article appears in print on June 21, 2025, Section A, Page 16 of the New York edition with the headline: Maps Might Be Lost as Cuts Threaten Geological Surveys.

Emerging science shows geologic hydrogen, created under the Earth's crust naturally, may exist in pools that can be extracted for clean energy. A U.S. Geological Survey study of where geologic ...