I just can't figure out, how does it work in civ4. Anyone can explain, a) how does the global warming generate, b) what can I do to prevent it, c) is there a way to transform affected tiles back to normal? It strikes about every 5 turns, turning lands around my cities into desert, which often results into starvation.
Edit: no nukes ever being used during this game. Furthermore, none of my cities suffer unhealthiness.
Maybe it is just a result of overall production of all civilizations, though I never seen a message that global warming stroke any other city but mine and I have my spies in their biggest cities. Which of course doesn't mean it didn't (they still have some desert tiles around their cities, not sure if they were there from beginning).
Edit: no nukes ever being used during this game. Furthermore, none of my cities suffer unhealthiness.
Maybe it is just a result of overall production of all civilizations, though I never seen a message that global warming stroke any other city but mine and I have my spies in their biggest cities. Which of course doesn't mean it didn't (they still have some desert tiles around their cities, not sure if they were there from beginning).