At the beginning of the 20th century, Chicago reversed the course of its river to save the city from pollution
Atbeginning of the 20th centurythe city of Chicago (USA) had to face a great environmental challenge caused by its urban and industrial growth: the river which crosses the city had transported up to theAug Michiganthe main water supply of the entire area, including Chicago, such a quantity of pollutants and other toxic substances to contaminate the waters of the basin. ...