We wake up in a remote Alaska anchorage to the sound of ice cracking as the tide drops and the bay starts freezing around us.

Erin Pettit and researchers at Oregon State University were set to find out. They’ve been studying melting glaciers by dropping hydrophones — specialized underwater microphones — into the water near ...

At the edge of Antarctica, one of the planet’s most fragile ice giants is splintering so violently that it is sending out its own earthquakes. The so‑called Doomsday Glacier is not only cracking apart ...