Since all of the fossil materials were from the same stratigraphic layer and locality, the oxygen isotope ratios from the animals are linked to the temperatures of both ingested river water and ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have discovered how a spike in carbon dioxide over 50 ...

"We think it reflects a global signal." What Caused the Prehistoric Warming? The double-barreled carbon release at the Paleocene-Eocene time boundary pretty much rules out an asteroid or comet impact ...

Learn about two major asteroid impacts from 3.5 million years ago that may not have had lasting environmental effects. Throughout Earth’s history, the planet has been struck by multiple asteroids, ...

Our current rate of warming will quickly lead us back to a climate that predates the evolution of modern humans, according to a new study in the Proceedings of the National Academy of Sciences. That ...

Asteroid impacts have changed Earth’s landscape time and time again. Some impacts caused great change to occur, like the Chicxulub Impactor, which led to the mass extinction of dinosaurs around 65 ...

When Congress convened its first meeting on the IPCC's report on climate change in 2007, Dana Rohrabacher - the Republican representative of California's 46th district - floated a rather unusual idea.

In the 1800s, miners found beautifully preserved fossils of animals from the Eocene. In 1800s, miners began working in exposed deposits of mud near the town of Messel, Germany. They were extracting ...