International 'oceans court' says nations must cut greenhouse gas emissions

The International Tribunal for the Law of the Sea ruled Tuesday that greenhouse gasses are a form of marine pollution, and it laid out governments' legal obligations to reduce that contamination and limit global warming. Host Carolyn Beeler speaks with Margaretha Wewerinke-Singh, professor of law at the University of Amsterdam, about how this new tool that could bolster legal efforts by island nations to persuade industrial nations to reduce carbon emissions.