São Paulo is the largest city in the Western Hemisphere, built on immigration, industry, and coffee — but decades of unchecked growth have left it battling polluted rivers, favela housing crises, ...

São Paulo grew from a colonial outpost into the largest city in the Western Hemisphere through waves of immigration and industrial transformation, but its 20 million residents now face compounding ...

Brazil's megalopolis Sao Paulo faces a new water crisis as the lowest rainfall in a decade has turned its main reservoir into mere streams surrounded by cracked earth, prompting water rationing. The ...