How would you design the city of the future?

Cities are working out how to store water and prevent flooding, with massive tunnels below them to allow water to flow away. Storage spaces to trap water then release it slowly as the waters receded. Having beavers upstream in rivers to dam and slow the flow of water downstream. And also reinstating rush beds or filter beds to hold onto the fluid and clean any sewage that has leaked into waterways. You could also build buildings up on higher ground or stilts. Or raise buildings in heavy rain or storm conditions. There is still a lot we can do to combat climate change.