Plastic is one of the most polluting materials for our planet. It was, in addition, the material preferred by the industry during the last century; and it is that petroleum products, being so flexible and economic, were produced in a massive way. Nowadays, our supermarkets, our homes and our oceans are inundated. Yes, there are studies that claim that more than 9 billion tons of plastic have been produced since the 1950s, something that is more than an obvious problem for our land, but also for...