SAN FRANCISCO -- Here's the crazy thing about the plan to build an almost mile long, 90-foot deep, subterranean ice wall around the Fukushima nuclear plant: It's not really very crazy at all.

The proposed ice wall around Fukushima (TEPCO) Here's the crazy thing about the plan to build an almost mile long, 90-foot deep, subterranean ice wall around the Fukushima nuclear plant : It's not ...

The ice wall would freeze the ground to a depth of up to 30 meters (100 feet) through a system of pipes carrying a coolant as cold as minus 40 degrees Celsius (minus 40 Fahrenheit).

Here's the crazy thing about the plan to build an almost mile long, 90-foot deep, subterranean ice wall around the Fukushima nuclear plant: It's not really very crazy at all.Building cryogenic ...