A startup in Hong Kong is trying to help coral adapt to the problems humans have caused — with its innovative use of 3D printing and terracotta.
More coral species live in part of Hong Kong's subtropical water than in the Caribbean, but the swath of the South China Sea used to boast even more natural beauty.
"We believe that this area was a coral paradise," David Baker, a coral ecologist at the University of Hong Kong, told CBS News."Those who are still with us from the World War II generation, these people tell you the water was crystal clear, that there were coral everywhere."So Baker co-founded Archireef, an eco-engineering startup, to rebuild the"paradise lost."
His team, in a world first, 3D-printed artificial reef tiles made from terracotta. They're non-toxic and biodegradable. The team placed the tiles on the sandy bottom of a protected bay and seeded them with living coral, and 95% survived in the past two years. Asked how he came up with the idea, Baker said,"I just thought to myself one evening that, why not tile the sea floor like we would tile a kitchen or bathroom floor?"
The tiles could have global application for coral adaptation, with benefits to humanity as well as ocean life. Reefs protect homes and businesses, breaking up destructive waves from storms. More than 1 billion people depend on coral, which plays an essential role in fisheries, tourism and even medicine.Archireef has now expanded to Abu Dhabi, where it has a new industrial 3D printer.Yu just moved from Hong Kong and aims to help coral move too.
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