The Complexe environnemental de Saint-Michel (CESM) processes and converts waste, conducts research and offers education about environmental topics. 

A large part of the CESM is used for environmental purposes. 
It is home to:

• A sorting centre, where all of Montrealers' recyclables are sent
• An electrical plant, which converts all the biogases produced at the landfill into electricity
• Composting and wood chipping sites

The CESM is surrounded by one of Montréal's largest green spaces, the Parc Frédérick-Back.