Since I will not be there to see how the Champs Elysees Become A Garden, I just checked the work in progress thanks to Nature Capitale updates on their Facebook page.
Here's what a Green Takeover of the Asphalt Jungle in Paris by Night looks like.
First a truckload of trees
Work in progress at the foot of the Arc de Triomphe
Sous les paves, le jardin.
To stay on message, I hope most of the moving equipment is green powered
(* photos live and from the scene by the Nature Capitale team)