It's also quite viable to turn parking lots into gardens, which if done at scale along with rooftop farming, could feed an entire city (as smaller scale farming actually can increase production by many times for the same amount of land compared to industrial scale farming.

crawls out of a manhole

Aaaaannnnddd we can do district heating and cooling with combined heat and power plants! Denser cities are well suited for a shared heating/cooling grid that's a lot cheaper and efficient than owning your own equipment for heating and cooling. It also leaves more rooftop available for greenspace or for solar panels.

Additionally you can use combined heat and power (CHP) plants to make the heat needed for the system, including using heat to make cooling with absorber chillers.

The Danes have one of the most advanced thermal grids in the world so far by complexity. They even use heat pumps to recover waste heat from sewage, data centers, and supermarket fridges/freezers (which actually makes them far more energy efficient btw since it's a smaller thermal lift, and the pumped energy is sold into the grid to make money instead of just being waste)

We could literally heat and cool the entire world but we dump it all as waste heat 🫠

You mean, like in Switzerland?

I don't disagree with you. Parking underneath with solar above is a great idea. Unfortunately I'm not in any position to tell these places what to do. I can't even get the company I work for to understand how much solar would benefit us considering it's a giant uncooled foundry. Shading the roof, AND free electricity?!? Considering how many people are heat casualties per year, or call ins because of it, it just makes business sense and they're like "nah, we'll just install another fan."

They probably installed them from one end to the other in sequence. Now that they're all in place, how do they get to the ones in the middle?