The morning of the event saw the presentation of the 2018 MOBILITARIA study, a document drafted by the Kyoto Club and the Italian Institute of Atmospheric Pollution Research (CNR-IIA) on mobility policies and air quality in 14 Italian metropolitan cities. The cities with fewer cars, according to the report, are Venice, Genoa, Milan, Florence and Bologna. The document noted that in the period 2006-2016, there were improvements of between 36% and 45% in nitrogen dioxide (NO2) emissions in Bari, Bologna, Catania and Reggio Calabria. The cities of Florence, Naples, Venice and Palermo recorded improvements of less than 20%. As far as the values for fine particles (PM2.5) are concerned, Bologna, Naples, Rome and Cagliari are the cities that have experienced the most significant reductions, while the results for Milan, Turin and Venice remain high.