It is difficult to say, especially when you are working in urban areas. Often businesses will have their idea of how to redevelop a site but the city will have a completely different idea. We also have a quarry in Laval but it is still a working quarry. We have already started working on rehabilitation, precisely in order to find sustainable solutions for the community.
Previously we used to draw up our own plans but we have decided to work with communities from the outset. Every five years, we consult the community in order to ask them what they feel is the best way to use that site in the future.
Some things are no longer done the way they used to be. Landfills are completely different now. The same is true of quarry rehabilitation.
Biodiversity never used to be a factor. You simply reforested the site. Now we try to improve ecosystem quality even in urban areas.