Sustainable Products, Projects and Green Design Slient Currents Memorial and Ecological Restoration by Yanci Chen Silent Currents is a memorial and marine restoration project that transforms a former nuclear test site into a marine sanctuary. Artificial reef structures are made of marine grade concrete infused with calcium carbonate to support coral growth and biodiversity. Submerged pathways and floating observation platforms allow visitors to view the recovering ecosystem. Tidal energy generators supply power for the site. The design connects remembrance of the past with long term ecological renewal.