Can 3D printing save the coral reefs?

Coral is like the ocean's rainforest, but it's disappearing fast. Ulrike Pfreundt has made it her life's work to find a solution.

The oceans produce one in every two oxygen atoms. Coral is like the ocean's rainforest. But it's disappearing, and fast. Ulrike Pfreundt has made it her life's work to find a solution. Pfreundt is a marine biologist at the Federal Institute of Technology ETH Zurich who gets emotional when she talks... More info