ATLANTA — After weeks of heavy ice across the Great Lakes, the massive 80-mile crack that once split Lake Erie from Port Burwell, Ontario, to the Cleveland shoreline has almost disappeared. "It's less ...

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 ...