Hey again.
As for tanks/tracked vehicles, ye you could limit them from moving on forest/jungle (without roads or with roads, not sure which

), as for hills... mm unlike forests hills usually dont pose a problem for tanks in the same extent. Tanks generally cant fight in forested areas cause, well they cant turn their turret
There's already the normal movement penalty for hills so I dunno.
A few other things...
National congress costs more then the statue of liberty, yet its a national wonder with minor effect

Some things I know have been mentioned but are worth mentioning again incase they fell through the cracks: Guthenberg wonder, workshops not showing up post industrial era.
Change the english UB for bank, Stock Exchange to "London Exchange" or the like, that way you can spell the generic avaliable "Stock Exschange" correctly

Oh and I have a personal issue with "Homeopathy" being avaliable as the top end medical civic

Personally I rate homeopathy right up there with "intelligent design/creationism" in terms of applicable science. So myself I'd prefer something more "realistic" or atleast scientific
Suggestions to be used as a replacement: Applied Stem Cell Research (could be placed in the same era of research as the current prereq - ecology
Molecular Medicine (refering to the extended use and manipulation of molecules/substances in modern medicine) could also be placed around the same tech level.
Nanomedicine/Applied Nanomedicine would have to be placed a bit further down the tree.
Some other minor things that could be added: Archery Range
Trait changes:
Aggressive - 1. Allow Naval units to benefit from the combat promo. 2. Add Drill I to the free promotion of combat I. 3. Allow Naval units to also benefit from combat I and Drill I. (Add Stable to "builds faster with aggressive trait", possibly add airport to the list with 25 or 50% faster build time)
Financial: Commerce bonus at 3 base commerce instead of 2 (it is a very powerful trait compared to others)
Industrious: 25% or 33% wonder production, extra hammer on tiles with 4 hammers, faster production of Mill
Anyway... any opinions on the above?
Addendum: Any thoughts about implementing the "fallout instead of desert" effect for global warming? I think it was in the 40 civ mod before when I played MarnzMod... can't recall the author Im afraid.