Here is my submission for the AS challenge - Neo-Tokyo.
My idea was to concept a pseudo-realistic Tokyo where the solutions against global warming are directly linked with nature.
Energy exchange with trees and plants.
Clever use of hydrogen and nuclear technologies with a management of impact and wastes.
End of green-washing consumering.
Etc.

You have the 2 final shots.
The 2 call out sheet (that I am not satisfied).
The researches.