A Spanish proposal would ban all advertising for traditional fossil fuels and products that use them, including cars. The prohibition would be the first of its kind in Europe. The goal is to stop petrol companies from “green-washing” their images. In this two-part Big Fix sequence, The World’s Gerry Hadden reports from Barcelona on the proposal. Host Carolyn Beeler then speaks with Ben Franta, a professor of climate litigation at the University of Oxford, about efforts to fight the exaggerated environmental claims of fossil fuel companies and their contribution to climate change.