Glaciers

If you're in Greenland and a strange cloud darkens the sky, that cloud might be made up of something scientists call "glacier flour."

An enormous iceberg about five times the size of Manhattan broke off Antarctica's Pine Island Glacier yesterday (Oct. 29), a mere month after a crack first appeared, satellite imagery shows.

Each night, the glacier made noises loud enough to keep a team of scientists camping on its surface awake. They figured out why.

Turns out, humans are shifting the planet's spin.

A 2015 landslide and tsunami in Alaska came after two decades of warning signs.

What lurks beneath West Antarctica's frozen surface? Heat — and lots of it.

Trillions of tons of ice melted away from Antarctica during the past 25 years.

How doomed are we?

A new study investigates the dark zone that seems to be getting bigger on the western edge of the ice sheet.

When you imagine an Antarctic glacier melting, you probably envision great walls of ice avalanching into the ocean. This is certainly happening — but it's only half the story.