An ice age is a period of colder global temperatures and recurring glacial expansion capable of lasting hundreds of millions of years. Thanks to the efforts of geologist Louis Agassiz and ...

Ancient ice discovered high in Tibet may be more than 128,000 years old, preserving an extraordinary record of Earth's ...

Margin of the Barnes Ice Cap. (Nicolás Young) Earth is constantly molded by fire and ice, and not in a poetic sense. These ...

Earth’s persistently frozen poles mean the last ice age never really came to an end. What we think of as the mammoth-romping, ...

Plants uncovered by melting Arctic ice have revealed a surprising change in its history. Scientists believe that the findings ...

Two thousand years ago, the Arctic remnants of a once-vast ice sheet started to grow again. It was the beginning of a new ...

The growth of massive Northern Hemisphere ice sheets begins with changes in Earth’s orbit that alter how solar energy is ...

During the last ice age, glaciers formed high in the Rocky Mountains and carved out the peaks and valleys visible today. Recreating the landscape and life forms of this era of the last great ...

Antarctica's glaciers were changing long before satellites, weather stations or cameras captured their transformations, and ...

A paleontologist from The University of Texas at Austin has discovered the fossilized remains of Ice Age animals that have never been found in Central Texas before—and he came across the bones while ...

A sharp cold spell began about 12,900 years ago, with a platinum spike in Greenland ice at its start: Established A comet impact or airburst caused the cold sp ...