What is an A List city?

To score an A, among other actions, a city must disclose publicly and have a city-wide emissions inventory, have set an emissions reduction target and a renewable energy target for the future; and have published a climate action plan. An A List city must also complete a climate risk and vulnerability assessment and have a climate adaptation plan to demonstrate how it will tackle climate hazards. And it must be making progress towards achieving its ambitious but realistic goals.

For Italy we've Florence and Padua. but you can check all the A cities over the world