Plastics are such a part of our everyday life that we hardly notice how ubiquitous they have become. They are found everywhere, from food containers and clothing to car parts and medical equipment.  Microplastics are small plastic particles, generally less than 5 millimeters in size, that occur in a wide range of shapes and materials. Due to their small size, microplastics are easily transported by wind, water currents, and stormwater and have been found all over the world in the air, soil, and water, and human and animal body tissues and fluids. Scientists are learning more every day about the potential impact of microplastics on our health and environment. Without meaningful intervention, it is anticipated that plastic accumulation in aquatic ecosystems, in other environments, and in the tissues of organisms, including humans, will continue to increase.