• @[email protected]
    cake
    link
    fedilink
    English
    141 month ago

    Keep seeing this picture but no control group. Give me the same data for a French city other than Paris to understand whether this is about local policy change or about emissions standards and the move to electric cars.

    • BarqsHasBite
      link
      fedilink
      English
      7
      edit-2
      1 month ago

      Googling tells me DEF (diesel exhaust fluid) was required in 2015 in Europe. Other posters have said this graphic is NO2, which is what DEF reduces.