TheOverseer714
Overseer
If I could get away with a one smiley post, it would be 

c3c=Civilization 3 Conqeusts
c3=Civilization 3
That's not too far off, Theov.
Wet = only very few desert tiles; more plains instead. Not so much more rivers.
Cold = more tundra, less jungle, more swamps instead. The ice caps (the ones you can't walk on) remain similar.
Warm = more jungle, and more grassland instead of tundra.
3 billion years old = young terrain, so more hills and mountains. Less food.