Tires are a major source of pollution. The tiny particulates left behind when the rubber meets the road create a fine dust of microplastics. And with more electric vehicles on the roadway, weighted down by heavy batteries, tires will leave behind even more toxic residue. Gunnlaugur Erlendsson, the CEO of UK-based tire startup Enso, talks with host Marco Werman about what the tire industry can do about it. (Originally aired May 18. 2023.)