english: And this animation, this shows photosynthetic activity over the course of a number of years, and what you can see is that the boundaries of those deserts shift quite a lot, and that raises the question of whether we can intervene at the boundary conditions to halt, or maybe even reverse, desertification.
non_english: Ova animacija, ovo nam pokazuje fotosintetičku aktivnost tokom perioda od nekoliko godina, a ono što možete videti je da se granice ovih pustinja dosta pomeraju, a to postavlja pitanje da li se možemo umešati u granične uslove da bi zaustavili ili možda čak i obrnuli, dezertifikaciju.