Describir: Programme on Man and the Biosphere [MAB]

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