At Plumb, in search of a top-down angle, I scrambled up an ice-free gully adjacent to the climb, anchored a rope and rappelled down to shoot Whit in action. When I lived in Bozeman, Montana, in my 20s ...

An curved arrow pointing right. Engineers at Japan's Fukushima nuclear power plant have designed an "ice wall" to stop the spread of radiation into the groundwater. Produced by Maya Dangerfield.

The nearly one-trillion-tonne block of ice was calved from Antarctica’s Filchner ... “It looks like a towering wall emerging from the ocean, stretching from horizon to horizon,” he said.