The article shows that there is a consistent relationship between the size and amount of microplastics in different environments. By using a simple math method, researchers were able to compare microplastic data from various studies, even with different size classifications. They found that smaller microplastics are more abundant than larger ones, with similar patterns across different environments like air and sediment. This method helps predict how many microplastics of a certain size are present in the environment, which can improve our understanding of the risks they pose to living things.