In his article published in Ends Europe, Richard Weyndling cites European experts as well as health and environmental activists who agree that the impact of Covid-19 restrictions on air quality in Europe demonstrates the case for tougher action on pollution. Greenpeace Spain yesterday published data showing that NO2 levels in Barcelona and Madrid have fallen significantly since restrictions on movement were put in place on 15 March. The average NO2 level from monitoring stations across Madrid, for example, fell from over 60 µg/m3 on 10 March to 15 µm/m3 a week later. Leer más