It doesn't need to be a dome per see but some sort of roof...a stepped dome would probably be the most efficient....Why on earth would you live in a dome? Climate change means it will be warmer, not that there will be a vacuum outside.
The main reasons are:
- To provide an atmospherically contained/controlled environment.
- To minimize/avoid fatalities due to frequent peak heat conditions.
- To dehumidify the air to avoid wet bulb extremes. (WB35degC has happened already twice apparently)
- To use as both roof, energy, garden and water collector.
- To protect against micro storms and violent cyclonic weather systems.