Self+contained+cities

Serbian designers Aleksander Joksimovic and Jelena Nikolic entered the eVolo skyscraper competition with their entry titled "Noah's Ark," which is a sustainable floating city that intended to create a safe and self-sustaining world that could be used when natural disasters and other global catastrophes destroy land-based cities. The floating city would be equipped with solar, wind, and ocean energy which is harvested to generate power, rainwater is collected for use. The sides of the island are designed to protect the city from severe storms and tsunamis. During major storms, the island is equipped with underwater bubbles where the inhabitants can escape to. Each ark contains residences, offices, farmland, animals, energy generation capabilities and recreational spaces, making the islands completely self contained. Producing all the energy, food, and water needed for the inhabitants on the island itself eliminates any need for import or export.