Polar Cities for Day After Tomorrow Survivors Will Save Us All from Horrible Deaths

There should be consideration for the idea that, due to population expansion and, hopefully, an interest in maintaining regions of the planet for wildlife, humans will need to build habitats in a wider variety of regions.  There seems to have been some success with providing underwater habitat and reef regrowth areas by sinking old ocean vessels.  Perhaps an underwater habitat for humans would give us a place to live, plus have a secondary effect beneficial to ocean life.

Providing we don’t completely destroy the region when it is built…