Arcologies are enormous habitats of extremely high human population density, providing production and consumption of all human needs within the hyperstruture.
Climate engineering is the deliberate large-scale intervention in the Earth
Carbon sequestration is the process of capture and long-term storage of atmospheric carbon dioxide
Universal desalination is the common distribution of plants that convert salt water into freshwater.
Seasteads are permanent dwellings at sea, outside the territory claimed by the government of any standing nation.
Vertical farming is cultivating plant or animal life within skyscrapers or on vertically inclined surfaces to maximise space and resources.
Weather engineering is the act of intentionally manipulating or altering the weather in a predictable manner.