Thanks for your reply - very helpful! Have you any idea what I can do about habitat and population? I have already done as much terraforming as possible, researched and built everything, but I see my cities habitat and morale deteriotating (I guess they are linked and caused by population). This red...

I'm very much enjoying the game but as I am now approaching the later stages I'm curious about some of the mechanics..... When everything has been researched and a city has everything built, how do you maintain/improve city morale and habitat? I assume they are connected in some way and that habitat...