X SEA TY is a proposed floating city that works to clean up the cities by transforming them from carbon dioxide-polluting environments by exploiting biochemical energy algae. The buildings are made with porous concrete and facades are covered in photosynthetic material, algae systems and living walls. This system works to produce biofuels, which can then be used for energy use. The living facades encourage animal life and biodiversity.
The cities are assembled like bee hives as needed to meet demands and can be built anywhere and even moved. Some can be located next to city centers to relief overcrowding and help produce enough resources for the city all while reducing pollution. Totally self-sufficient, these lush cities produce all the energy they need, provide for water and actually improve the environment.