It's annoying having to use F11 to find out how many squares of pollution you have. It would be really nice if the number was printed inside the yellow sun symbol that is showing that there is pollution.

Yeah, and also if there were an easy way to find the polluted squares. Not a big issue, though.

I'd prefer that they get rid of the sun altogether...put NUMBERS there or something like a dial. I can NEVER tell just how badly polluted my world is by looking at a yellow sun that gets a little brighter every turn. Maybe the sun could start out yellow and go to black when it's reached the Global Warming Transformation point....

This is way you need "Earth Day" as a wonder
reduces pollution and gives one happy face all over the world
greatly reduces pollution and produces 2 happy faces in your cities

That would be kinda cheesy if I build a wonder and it gives 1 happy face in all my opponents cities too. :(

It gives 1 happy face to every city because the civs. live in the same planet,(we too live in the same planet) and because it is call Earth Day it could be celebrated by every one.