Actually one very good proposal which is being used somewhere in Europe – I forget where – is to close the downtown core to casual car traffic, allowing only commerical traffic (shipping and receiving), and to make public transit free for tourists. A tourist would show ID to a transit depot and receive a photo-pass to travel in the downtown core for a set period of time.
Toronto is looking at this. I hope we do it. Many highrise buildings in Toronto now have chutes which rotate to catch ordinary garbage, paper products, or glass and plastic products. We have a rooftop garden initiative and a free-tree initiative. The really big one is the Waterfront which has yet to be built; this will be a green lane. I am hoping too that everyone is evicted from the Islands and that that land is reclaimed as a wildlife preserve.
Trouble right now is that Toronto has nowhere to dump its garbage. Michigan just closed the border on us. We have allowing households 6 bags of garbage per week. That will be lowered to 4 bags per week before the city starts charging them for garbage pickup. People will then be motivated to recycle and to use composters.