Earth's oxygen-rich atmosphere faces a finite lifespan of about 1.08 billion years before a sharp decline, according to a ...

Levels of molybdenum in soil show that hydrogen sulfide gas wiped out nearly half of all marine life 530 million years ago.

CINCINNATI (WKRC) - Earth's atmosphere, which is currently rich in oxygen, is predicted to undergo a drastic shift that could lead to the extinction of most life forms, including humans, scientists ...

While the gradual consumption of oxygen on Earth presents a worrisome scenario, this process is going to take a few billions of years. In the course of this highly unlikely destiny, planetary ...

Learn how microscopic fossils reveal that tiny seafloor organisms were already feeding and recycling nutrients soon after one ...

In today’s state of overwhelm, it’s easy to spend more time consumed with the present and the future than contemplating the events of the past. This constant forward motion can, at times, become ...

WASHINGTON -- An ancient version of global warming may have been to blame for the greatest mass extinction in Earth's history. In an event known as the "Great Dying," some 250 million years ago, 90 ...