Greetings once more!
Could someone please explain the mechanics behind crime, air and water pollution (i.e. the "features"). I've been trying hard to suppress these things for a couple of turns (i.e. building tree nurseries, ecologists and policecars), but then on a single turn everything pretty much inverted (sorry, the screenshot and savegame got lost here)
For instance, before that turn I had the maximum crime increase of about +1 in one of my cities. After that turn I had about +275 in some other city; and most cities started having a positive crime rate! Same happened to water pollution score, which was previously quite low (negative, in fact) mostly everywhere.
And after that turn things reverted to more-or-less normal figures, and crime crawled back to negative values in three or more turns.
Is this a mechanic of these features, or how else did it happen? Or did my figures glitch again (I once more managed to pump my city to over-the-integer limit culture, and its culture turned negative. During the game I also never got first place on the "most cultured" civ list, though my culture level clearly and evidently suppressed everyone else's).
The properties work by dimishing returns, ie as the levels get higher the rate of growth slows, and as they get lower decay slows. As for those numbers, there very well still could be odd bugs regarding display or calculation of properties, so if you find a save in which it is repeatable please post it in the bugs/crashes thread.