www.mediafax.ro/life-inedit/93-de-copaci-la-100-de

Mantova has been recognized as Italy's greenest city despite being located in one of Europe's most polluted regions. The city, with a population of over 50,000, previously housed a petrochemical plant that contaminated three lakes. Today, it leads the green city rankings, alongside other cities in the Po Valley, such as Cremona, Reggio Emilia, and Parma. This raises questions about how such green cities can thrive in a polluted area.