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.

A new study published in the journal Nature shows that glacier ice walls are vital for the climate, as they prevent rising ocean temperatures and melting glacier ice.

The trillion-ton slab of ice — called a megaberg — is currently aground near the South Georgia Island. A23a could affect the marine life on the island, including penguins and seals, as they use the ...

Plant operator Tokyo Electric Power Co. froze the soil to create an underground ice wall to divert the groundwater toward the ocean and away from the damaged reactor buildings where the liquid can ...