Most of us are familiar with recycling of one form or another.
Most communities routinely collect newspaper, glass, aluminum, and some plastics.
This effort has saved millions of dollars in waste disposal. What you may not be so familar with is the efforts to recycle motor vehicles and the fluids and gasses within them. The biggest environmental hazards generated by salvage vehicles are oil, freon, antifreeze and fuel. Vehicles generate some of the worst environmental hazards, both because of the sheer volumn generated and by the damage caused by illegal and careless disposal. It falls into the category of chloroflorocarbons, the same stuff that used to be routinely used as a propellant in aerosol cans and a refrigerant in refrigerators and freezers.