On hot days, between shade and sun I feel a dramatic difference and think: All that energy, just falling for free from the sky, raining uselessly on dead concre

On hot days, between shade and sun I feel a dramatic difference and think: All that energy, just falling for free from the sky, raining uselessly on dead concrete. Sure we could build more solar panels, but obviously we can't cover the city with them. But the trees and other flora use the energy to power their carbon capture machines, you can measure their energy consumption in the difference between their shade and the sun. Naturally, little of the ground is so dead. Our mistake is building our cities this way, though it's relatively easily remedied.