Microplastics are increasingly being found in our bodies and food supply. They are defined as pieces of plastic smaller than 5 millimeters — about the size of a pencil eraser. But they can also be much smaller, like the size of a virus particle or a strand of DNA. Petrochemicals, the building blocks of plastic, are produced from oil and gas. The business is a small but profitable area of the fossil fuel industry, and any push back on the use of plastics is seen as a threat to the oil and gas industry. "Wher ...