Greenfield, Mass. (Special to Informed Comment; Feature) – Microplastics, those miniscule particles smaller than 5 millimeters which plastics physically break down into, have now infiltrated every part of the planet – from the highest point of the Himalayas; to the deepest depths of the sea; to the snow of Antarctica. They penetrate all layers of ocean and are often mistaken for zooplankton and consumed by fish. Consequently, people of coastal…