Using fertilizer wisely could help feed 9 billion people
Friday, August 31, 2012 - 07:32
in Earth & Climate
Can the world's existing farmlands provide enough crops to satisfy the hunger of the nine billion people—up from seven billion currently—that demographers predict will be living on the planet by the mid-21st century? Or will more and more forests and other ecosystems have to be cleared to feed all the extra mouths?