Waste does not exist in nature — all materials are part of a cycle of use and reuse. When a plant or animal expires, every part of it goes back to nourish something else. In short, there is no such thing as a worthless material in nature — there is no such thing as waste.
The concept of waste is something created by humans to describe the items we create but no longer need and discard. Merriam-Webster defines waste as “refuse from places of human or animal habitation.” The World Book Dictionary defines waste as “useless or worthless material; stuff to be thrown away.”
While it’s safe to say that waste has existed as long as humans have, it’s impossible to pinpoint when the first piece of litter hit the ground. But throughout history we can look back at how waste was generated and handled across cultures and societies all the way up to the present.