This is an odd one. On one level it replicates the resource bonus to your home base provided by the Recycling Tanks, but if you already have Recycling Tanks, it doesn't do much for you. The base cost is twice that of the tanks, but there's no maintenance, making this a very good buy overall.
Then there's that part about allowing your base to exist
under water. Normally, a spell or two of ordinary global warming will sink, at
most, a couple of your bases, and sometimes not even that. The Pressure Dome ability
is mostly useful if you're planning ( or suspect the other factions are planning
) a strategy of catastrophic, ongoing global warming. ( Hint: if you're already
experiencing ecological damage, and the other factions all gang up on you and
vote to melt the polar ice caps, by all means start building Pressure Domes.)
A perfectly reasonable strategy for this facility is to build it early on, instead of Recycling Tanks, for the resource bonus ( this facility will literally pay for itself in 80 years ), and then if sinkage becomes a concern, you're already ( excuse the pun ) covered. Certainly you want to build Pressure Domes rather than Recycling tanks in any sea bases.*
*Webmaster's Note: In all of the games where I have had Pressure Domes available to me in land bases, I've never seen them as an option to build in *any* sea bases that I've constructed. Does anyone know of a patch for this, or is it an unresolved bug??
