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 ...

Marine scientists have discovered that what was once thought to be a single sea slug species is actually at least 75 distinct ...

A research team, composed of climatologists and an astronomer, have used an improved computer model to reproduce the cycle of ice ages (glacial periods) 1.6 to 1.2 million years ago. The results show ...

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 ...

The study of paleoclimate dynamics and glacial cycle mechanisms seeks to understand how Earth’s climate has varied over geological time and what drives the alternation between ice‐age (glacial) and ...

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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 ...

Proxy data – indirect records of the Earth’s climate found in unlikely places like coral, pollen, trees, and sediments – show interesting oscillations approximately every 100,000 years starting about ...

A study says the Mid-Pleistocene Transition may have been linked to previous erosion of continental soils that subsequently allowed glaciers to stick to the underlying hard bedrock more efficiently.

Plant wax preserved in lake sediments reveals what the Earth's climate and rainfall were like 240,000 years ago.

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 ...

Something big happened to the planet about a million years ago. There was a major shift in the response of Earth’s climate system to variations in our orbit around the Sun. The shift is called the Mid ...