This is the third project of the Simi's Dream to build a city in the deep sea. The site is envisioned to be on the seafloor at a depth of 3,000 to 4,000 meters, where vast flatlands extend in the deep sea region below 200 meters. The project will address the issues of food, energy, water, CO2, and resources, which are critical to the sustainability of human society, by utilizing various potentials not found on land, such as ocean temperature differences, water pressure differences, deep-water nutrients, deep-sea bacteria, and seafloor magma.

Shinkenchiku January 2015 issue 200P