Building a different kind of wall

Alaska mountain landscape with glacier in foreground

We will need innovative thinking to keep beautiful glaciers like this one around. (Ashley Gallagher/George Washington University)

A team of engineers might have an idea to slow rising seas and collapsing ice sheets. They have proposed building a giant wall in the sea to support some of the most vulnerable ice sheets in Antarctica. This could be the largest civil engineering project ever attempted. It'd be a huge undertaking... but we're on thin ice. 

Build the (Ice) Wall

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