Nascentes urbanas de São Paulo

"Amidst buildings and asphalt, water springs survive in the city of São Paulo. There are many of them, supplying the rivers that run beneath the streets and avenues of the capital. According to the city hall, there are 300 rivers, almost all buried, polluted, and practically dead..." | article by Rosana Cerqueira for Globo News Especial, November 16, 2014.