Well, I started building it, though I did not complete it. But this "bug" only affects my cities, not all the others. I tried changing the production from the GC to something else and it didn't change that. More to the point, the pollution screen still reported a possibility of a disaster in x years (I forget how many, bt fewer than it had been), presumably due to what the other civ's cities were doing.
What should happen? I'd really appreciate it if someone could tell me exactly what the situation is.
Nick.