Cassiano is the founder of Teto Verde Favela, a nonprofit that teaches favela residents how to build their own green roofs as a way to beat the heat without overloading electrical grids or spending ...

Cassiano is the founder of Teto Verde Favela, a nonprofit that teaches favela residents how to build their own green roofs as a way to beat the heat without overloading electrical grids or ...

It was a sunny September morning in Rio de Janeiro's Parque Arará favela and volunteers were preparing plants to be placed on Reginaldo Gomes da Silva's roof. Students from both the neighborhood ...