[Quick guide]: Underground world: Problems and difficulties (Part 1)

What is underground living? For many of us who are accustomed to living in high-rise buildings, the thought of living in the underground world may seem far-fetched or unfathomable. What are the plausible problems and difficulties associated with underground world living? The rising sea levels and temperatures, and deteriorating air pollution are some of the reasons that may compel us to seek refuge permanently underground. Are we ready for it?