Dr. Chelsea Rochman, an associate professor at the University of Toronto, says plastic, everyone's favourite cheap and easy resource, comes with a high price. Microscopic pieces of plastic flake off every time we wield a disposable bag, or wash a polyester sweater, or any number of things. They permeate our water, air, soil, bodies, even unborn foetuses. It's a problem that will plague humans for untold generations unless, she says, we take aggressive action to control our plastic addiction.