Cigarette butts are the most littered object in the world. With their plastic filters and toxic substances, they are a significant source of contamination for soil and water. Grazi Grilo, a researcher at the Global Institute for Tobacco Control, talks with Stephanie Desmon about her work quantifying the scope of the problem, and why some of the very things that make cigarettes so environmentally hazardous also provide enormous benefits for the tobacco industry.Read more about her work here: https://publichealth.jhu.edu/institute-for-global-tobacco-control/2024/assessment-of-littered-cigarette-butts-in-brazil-informs-strengthening-of-global-treaty