This has been studied in detail by the NCC staff, so I'll let Ms. Lemay comment on it.
My comment would be that the greenbelt is a much more diverse area than Gatineau Park. It contains many different things. There's leased agricultural land. There are very environmentally sensitive lands, a wetland called Mer Bleue to the east of the city. There's an international airport. Nortel has a leased property there. So applying one standard like that to the entire greenbelt would pose great difficulties, I believe.