Japan using Saudi-made coral skeletons from expo for sea conservation

Japanese universities are seeking to restore coral reefs and marine ecosystems after inheriting artificial coral structures that Saudi Arabia made and showcased at this year's World Exposition in Osaka.The coral skeletons, donated to the University of the Ryukyus in Okinawa and Kansai University in Osaka Prefecture, are made of calcium carbonate, a material on which corals are believed to grow more easily when compared with other artificial alternatives such as concrete or metal.The skeletal structures were created using 3-D printers, with one piece produced per day during the expo period a…READ FULL ARTICLE