Few geological features on Earth carry as much climatic weight as permafrost. The frozen soils encircling the Arctic from ...

New geological evidence suggests that the slow wobble of Earth’s axis may have triggered rapid climate swings during the Late Cretaceous greenhouse world.

A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational pull serves as a stabilizing force for our home’s orbit, tilt and position ...