Which city did world leaders meet in to discuss how to fix global climate change?

Sodom and Gomorrah

You can be sure it wasn't Fargo, ND.  

LMAO at Georgie's sock puppets!

This year's conference has been postponed because there is nothing to discuss, the Earth is entering into a cooling cycle.

Various cities....typically those having high-end hotel/resort accommodations and fine dining.  The types of places that most of us can only dream of visiting.

Why do they travel thousands of miles to meet? Can they not see the irony? What’s wrong with video conferencing? It would set a good example, and make more people receptive to what they are saying.

Not just one city; it's an ongoing process. There were agreements drawn up in Kyoto and Paris.

It's a different city each time they meet.

Are you talking about the Paris accord?