Describir: Urbanization and sustainable development in the third world:

  _  __    ______               ___      ______     ___      ____     _    _   
 | |/ //  /_   _//     ___     / _ \\   /_____//   / _ \\   |  _ \\  | || | || 
 | ' //    -| ||-     /   ||  | / \ ||  `____ `   / //\ \\  | |_| || | || | || 
 | . \\    _| ||_    | [] ||  | \_/ ||  /___//   |  ___  || | .  //  | \\_/ || 
 |_|\_\\  /_____//    \__ ||   \___//   `__ `    |_||  |_|| |_|\_\\   \____//  
 `-` --`  `-----`      -|_||   `---`    /_//     `-`   `-`  `-` --`    `---`   
                        `-`             `-`