I HAVE BELIEVED IN UNDERWATER CITIES MOST OF MY LIFE...I STARTED GOING TO COLLEGE TO DESIGN AND BUILD THEM IN 1973...I THINK THEY ARE OUR BEST HOPE TO SAVE THE PLANET...VERY EFFICIENT AND MAKE YOU VERY AWAER  OF YOUR SURROUNDINGS...NOT SUBJECT TO HURRICANES, TORNADOES, MOST EARTHQUAKES, AND DEPENDING ON LOCATION...VOLCANOES...UNLIMITED ENERGY FUEL CELLS. AND FOOD...I TEND TOWARD MODERN, YET SIMPLE STEAM POWER PLUS FLOATINF SOLAR PANELS THAT CAN BE SUBMERGED FOR BAD WEATHER...GIVE ME SOME IDEAS...