File photo taken on Nov. 26, 2019 shows an artificial reef under construction in Australia. A program to install giant artificial reefs along Australia's coastline aims not just to bring underwater ecosystems back to life, but help coastal communities cope with COVID-19 as well. Officially announced on Thursday, the ambitious 'Reef Builder' program involves creating 11 artificial shellfish reefs, each roughly the area of a football stadium, in various locations from southeast Queensland around Australia's southern coastline to Perth in Western Australia. (The Nature Conservancy/Handout via Xinhua)
