They mentioned that, and claimed that that would contribute to global warming. Now if memory of my biology classes serves me, plants consume CO2 and produce O2... so that would seem to be antithetical to contributing to global warming. Not only that, but where do they think the plant material that they're buying in the shops comes from? It's like the people that say it's wrong to kill animals for food. We should just buy our meat in grocery stores.
Aren't they SMOKING the grass? Aren't they both DRIVING and producing SMOKE from their bongs? What the heck does the city have to do with it? All the harmful actions are being taken by the very people who are suing the city, the city should be suing THEM!
It just points out the old public service commercials....... "Why do you think they call it "DOPE"?