Ice ages have come and gone, shaping the planet and leaving scientists and historians alike wondering about their causes and ...

PROVIDENCE, R.I. [Brown University] -- Earth is currently in what climatologists call an interglacial period, a warm pulse between long, cold ice ages when glaciers dominate our planet's higher ...

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 ...

Earth is closer to the sun at some times of year than at others, with the time of closest approach shifting over a period of 22,000 years. This affects Earth's climate, including ice ages, but a team ...

Simulations reveal that the annual temperature cycle in the Pacific cold-tongue region is influenced by the shape of Earth’s orbit, as well as by the planet’s axial tilt. Together, these influences ...

The general outlines of the ice ages of the last several million years are pretty well understood. The timing of the glacial cycles has been controlled by cycles in Earth’s orbit, with the temperature ...

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New research shows how sea ice growth in the Southern Hemisphere during certain orbital periods could control the pace of ice ages on Earth. Earth is currently in what climatologists call an ...