Describir: Urbanization and sustainable development in the third world:

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