10/10/2013 Inside the Pallin tunnel

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Project Pressure recently partnered with Polaroid Sunglasses to mount an expedition to Arctic Sweden. Among other sites, the team had an opportunity to explore the Pallin glacier tunnel. Uncovered by melting ice after being hidden for fifty years, this incredible natural wonder is one of the few glacial tunnels in the world that are safe to access.

A video about the tunnel with some background from glaciologist Per Holmlund is currently showing on The Guardian’s environment page.