Hike north on the Appalachian Trail and the scenery slowly transforms. Rugged, steep ridgelines in Tennessee and Virginia soften into the broad summits and smooth peaks of Pennsylvania and New Jersey.

Even when Earth was locked in its most extreme deep freeze, the planet’s climate may not have been as silent and still as ...

In the whole history of Earth's climate, few events are as extreme as those that geologists call "Snowball Earth." ...

To an astronaut today, the Earth looks like a vibrant blue marble from space. But 700 million years ago, it would have looked ...

Scientists have long thought that when the ocean is sealed under a kilometre-thick shell of ice, the usual connection between ...

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

Australian scientists have drilled 400 metres into the Antarctic ice sheet, to retrieve ice that formed at the end of the ...

This video examines how Earth’s natural ice age cycles work and explores what current climate research says about the role of human-driven warming in shaping future climate trends. Turning Point ...

Even when Earth was locked in a global deep freeze, its climate may have kept moving. Ancient rocks reveal seasonal and decade scale cycles beneath the ice during Snowball Earth.

To an astronaut today, the Earth looks like a vibrant blue marble from space. But 700 million years ago, it would have looked like a blinding white ...

This shift, researchers say, marks a climatic tipping point—and it may have shaped the evolution of our species. “Things were ...