Here’s an actual “quality over quantity” idea. Not a civilization but a feature that will affect gameplay. Local eco balance (only your civ is affected) and global eco balance (the whole world with every civ and city state are affected).
Here’s how it will work: each map starts with a large amount of eco points (eco points = eco balance). Cities, citizens, some buildings and some actions (usage of nuclear weapons will take away a huge amount of eco points, chopping down forests) will take eco points away. When your local eco balance is high – your civ will get a small happiness bonus. Negative local eco balance – penalty for happiness and a negative modifier for diplomacy with every civ but only if they have a positive local eco balance. Forests within city range will give a small amount of eco points.
Local eco balance of every civilization will affect global eco balance (a sum of every civs local eco balance). If global eco balance is negative – every civilization and city state will get a large growth penalty and production penalty. Global warming will strike after a set amount of turns with negative global eco balance. Global warming will turn grasslands into plains, plains into deserts, tiles near rivers will turn into swamps. Random ice near polar caps will melt and some coastline tiles will disappear under water. The longer the world stays with negative eco balance the more it’s getting damaged. Positive global eco balance will give a small amount of food for every civ and city state.
Several buildings should be introduced: recycling station, sewage treatment plant, parks, etc...Some of these buildings will give a set amount of eco points, some will give eco points for nearby forests. A new tile improvement can be introduced: environmental monitoring station. A new national wonder can be introduced too (can’t figure out what it will be. Maybe a zoo or a center for disease control). Workers will be able to plant forests if a required technology has been researched. A new unit will be introduced: Terraformer. Very high building cost. Very high maintenance cost. Only a few are allowed per civ. It has the ability to terraform any tile but it will take some time. Turn deserts back to grasslands, turn oceans into islands, etc...Terraformer should be linked to future tech. Future tech should also give a small amount of eco points (future tech is totally useless in its current state. Oh...and don’t forget to remove that stupid George W. Bush quote).
A scenario will be nice too. Back to Eden: restore the world after World War III. The world lies in ruins, nuclear fallout is everywhere and only a few small cities left. Restore the world and clean it from pollution while defending against raiders, mutants and other post-apocalyptic crap and uniting other cities under your control.
What do you think about my idea?