Plastic recycling doesn't work, no matter how diligently you wash out your peanut butter container. Only about 15 percent of plastic waste is collected for recycling worldwide, and of that, about half ends up discarded. That means just 9 percent of plastic waste is recycled. The rest ?" some 91 percent of all plastic waste ?" ends up in landfills, incinerators, or as trash in the environment. One report estimated that 11 million metric tons of plastic trash leaked into the ocean in 2016, and that number could triple by 2040 as the global population rises and lower-income countries develop. Plastic is now simply everywhere: at the deepest depths of the ocean, on the tallest mountains, in hundreds of species of wildlife, and even in human placentas.