It is estimated that as many as 5.6 trillion used-cigarettes, or 766,571 metric tons, are deposited into the environment worldwide every year. That’s a lot of litter, especially when it takes 18 months to 10 years for cigarette filters to degrade! However, these butts may have a newly discovered second use as a group of South Korean scientists have converted these cigarette leftovers into a high-performing material that could be integrated into computers, handheld devices, electrical vehicles and wind turbines.