There is a lot of litter on our planet, but it hasn’t always been that way. For most of human history, people made stuff out of things they found in nature. They might make tools out of rocks or sticks. These things break down and become part of the soil again.
It wasn’t until the invention of new materials, like plastic, that we started creating more litter. In fact, along with the rise of these new materials came the word “litterbug.”