Streets are flooded by rain in the Sol Nascente favela of Brasilia, Brazil, on March 22. The number of households in Sol Nascente has swelled 31% since 2010 to more than 32,000, surpassing Rio’s hillside Rocinha favela that had been Brazil’s most populous, according to preliminary data from the ongoing census. Along Sol Nascente’s unpaved dirt roads of self-built homes …
