Svalbard is a remote Norwegian archipelago with reindeer, Arctic foxes and only around 2,500 humans -- but it is also home to a vault containing seeds for virtually every edible plant one can imagine. The mountainside Crop Trust facility has thousands of varieties of coconuts, corn, rice and more, serving as a seed backup for humanity. For each crop, there’s an envelope with 500 seeds.

This featured episode from the show “Endless Thread” explores an unusual reserve of invaluable resources. Plus, Emmett tells about another seed bank in more precarious part of the world.

The Vault