MOLINE, Ill. — It was in the 1920s that a Serbian geophysicist, Mulitin Milanković, theorized that variations in Earth's tilt and wobbling about its axis impact the amount of energy being received ...

For millions of years, the Earth has oscillated between ice ages and warmer episodes. The movements of the ground beneath our ...

Sediments from Scotland hint that ocean-atmosphere interactions continued more than 600 million years ago despite widespread ice.

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’s climate has never been static. It shifts between warm interglacial periods and deep freezes, driven by complex interactions between the atmosphere, oceans, and even Earth’s orbit around the ...

The hydrological cycle is a fundamental natural process for keeping Earth’s operating system intact. Humanity and civilization are intimately dependent on the water cycle, but we have manipulated it ...