Throughout Earth's history, ice caps have been very rare, but a model of the past 420 million years suggests an explanation ...

The cool conditions which have allowed ice caps to form on Earth are rare events in the planet's history and require many ...

the point where all the lines of longitude that curve around Earth from top to bottom converge in the north. Marking the North Pole is challenging, as it’s covered by moving sea ice, but its ...

This strategy would pump water either into or out of the cracks between the ice and the Earth’s rocky crust to control that friction and potentially slow down a glacier’s movement. A third ...

The northern and southern reaches of the planet are warming faster than any area on Earth ... as the ice-albedo feedback. Surface temperatures in the Arctic Ocean are warming more rapidly than ...

Check your compass again — Earth’s north magnetic pole is moving toward Siberia. Since at least the early 19th century, Earth’s north magnetic pole has been situated in the Canadian Arctic ...