Oxygen isotopes data enable researchers to look far back into the geologic past and reconstruct the climate of the past. In ...

Ancient horsetail plants, surviving for 400 million years, are revealing Earth's climate history. Their unique water ...

Stable isotope analysis suggests that, before Roman aqueducts, residents of the city may have soaked in dirty water ...

Ancient horsetail plants produce water with unusual oxygen isotopes, offering scientists a new tool to reconstruct Earth’s climate history and understand humidity patterns from millions of years ago.

The marvels of the Grand Canyon extend beyond its dramatic scenery. Underground, vast cave systems hold clues to the region’s ...

High-resolution isotope data show that a modern-like, oxygen-rich atmosphere was not established until 410 million years ago, supporting a 2-billion-year transitional oxygenation of Earth’s surface.

Scientists at The University of New Mexico have found that the Earth and Moon have distinct oxygen compositions and are not identical in oxygen as previously thought according to a new study released ...

A previously unexploited source of information is now throwing new light on the Earth's climate during the age of dinosaurs. Fossilized dinosaur teeth show that concentrations of carbon dioxide in the ...

Earth may have had fresh, not just salty, water as soon as 600 million years after the planet formed — a mere blink of an eye in geologic time. Researchers analyzed oxygen molecules within ...

A research project at the Field Museum's Robert A. Pritzker Center for Meteoritics and Polar Studies focuses on identifying micrometeorites from Antarctic sand, which are regarded as "cosmic ...