Alberta's Tar Sands

I really like this question as well. I also thought of it from this perspective: "What actor has the strongest influence in ensuring that environmental policies are sustainable?

1) International Organization 2) Federal Government 3) Provincial Government 4) Local Government 5) Local (independent) Organizations (Perhaps: Voters/citizens/individuals)

I think it is interesting to see what actor people generally believe is the most influential / powerful in environmental politics and policy making! Especially here in BC, where people are more environmental conscientious.