​Ice is melting around the world, with drastic consequences for humanity. One way scientists can work out just how fast it’s melting is by listening. The disappearing ice has its own sound.

Geophysicist Ludovic Moreau wants to get to the bottom of a mystery: Why is the pack ice in the Arctic melting faster than predicted? He and five other scientists travel to Svalbard in Norway, not far from the North Pole. On a frozen lake, they drill holes in the ice and place seismic sensors inside. The melting ice creates a sound like singing. It’s music that could help solve the mystery of the retreating pack ice.

DW Documentary