Promoted by Ecopneus under the auspices of Region Sardinia, Metropolitan City of Cagliari, ARPA Sardinia and ISPRA (Higher Institute for Environmental Protection and Research) and in collaboration with Legambiente Sardinia. Among the others, also Luisa Mulas (Department of Environmental Defence, Region Sardinia) and Paolo Nicola Schirru (Delegate to the Environment Sector for the Metropolitan city of Cagliari) took part to the event.