This document provides background information on the city of Fortaleza, Brazil. It discusses how Fortaleza has experienced rapid urban growth and economic development in recent decades, transitioning from a predominantly rural economy to a major urban center. The population of Fortaleza has grown significantly, and its metropolitan area now accounts for around 45% of the population of Ceará state. Fortaleza has also become the economic engine of the state, generating 65% of Ceará's GDP, with a strong services sector and industrial base. The document aims to provide context on Fortaleza as it discusses pathways toward more sustainable urban development.