In order to get into the holiday spirit, I decided to share some interesting and hopeful tech coming our way. You know I'm a conservationist so I'm excited to tell you the artificial coral reefs are helping to save the oceans. How exciting is that?

In 2016 researchers at the University of Hong Kong installed artificial coral reefs made up of terra cotta tiles. They 3D printed the material in hexagonal shapes that were perfect for coral seedlings and other ocean species to find a foothold. Piece...