Fuck going green. Go blue. Most of the untapped real estate on Planet Earth is under water anyway. These concepts may appear a bit far fetched, but they offer as many positives as they do unrelenting fears. Sustainable climate control, protection from atmospheric devastation, tranquility, no escape, loss of oxygen, giant squid attack, drowning, and other such fun things. Regardless, I am sure we will see something like this someday and the designs are pretty damn cool. Sort of a space station underwater. To infinity and below.