Scientists have long debated what causes glacial/interglacial cycles, which have occurred most recently at intervals of about 100,000 years. A new study reported in the March 24 issue of Nature finds ...

A new study by planetary scientists at Harvard offers an explanation for one of Earth’s great climate puzzles: how the Sturtian glaciation, an ancient ice age when the planet was nearly entirely ...

During the Sturtian glacial period during the Neoproterozoic Era, Earth underwent periods of global glaciation, which have ...

Beginning around 2.5 million years ago, Earth entered an era marked by successive ice ages and interglacial periods, emerging from the last glaciation around 11,700 years ago. A new analysis suggests ...

It is known from Antarctic ice core samples that our current Ice Age cycle between glacial periods and warmer interglacial periods went through a phase change about 900,000 years ago. At that point, ...

The ebb and flow of Pleistocene glacial cycles is not random; it follows a predictable pattern dictated by the distinct and deterministic influence of Earth’s orbital geometry, according to a new ...

These ancient cores may contain clues about an unexplained change in Earth’s glacial-interglacial cycles, and could shed light on how human-generated emissions will shape our planet’s future. Reading ...

Since the arrival of Mars Global Surveyor and more recently Mars Odyssey spacecrafts, a range of facts has revealed the existence of frozen water ice in the top meters of high latitudes near-surface ...

Earth’s path around the Sun is not a fixed racetrack but a slowly shifting orbit, and those subtle changes have a long history of reshaping the planet’s climate. As astronomers refine how these ...

Around 10,000 years ago, as the last Ice Age drew to a close, the drifting of the continent of North America, and spreading in the Atlantic Ocean, may have temporarily sped up—with a little help from ...