In my eyes, I don't see recycling as a world cure or anything. But for your report I can give a few ways people THINK recycling works.
It creates less waste in landfills, but if there isn't recycling, they fill up quick and have to expand to other land that could be used for something better such as a home, church, playground, etc... But then again, who wants to live or play near a landfill?
I always wondered how much of our recycle bin is actually used as recycled materials.