[manwe150]

Not net zero exactly, since it’s a flows and rates problem, not static equilibrium. So it could even be strongly positive effect or negative effect based on how quickly the heat gets radiated back into space depending on how the wavelengths interact with the surroundings and the atmosphere.

Our current cities and infrastructure are designed to be black heat sinks to soak up heat and hold onto it and ground level. But there is research into what would happen if we flipped that design around.