A German research team has developed an iron-catalyzed, solar-powered method to break down polystyrene plastic into valuable chemicals and clean hydrogen. This innovative process offers a solution to the growing problem of plastic pollution, particularly the recycling challenges posed by polystyrene, and supports clean energy production. The process not only reduces plastic waste but also promotes a circular economy by converting waste into usable industrial chemicals and renewable hydrogen, paving the way for more sustainable practices in both recycling and energy production.