Watch VoirFilms. When Botswana banned elephant poaching in 2014, something incredible happened: the news of the safe haven spread among herds, prompting a mass elephant migration into Botswana from neighboring countries. Now, with nearly 60% of the world’s elephants residing in Botswana, the ecosystem is buckling under the pressure of supporting them. Climate change and unprecedented drought have created a water crisis for the masses of elephant refugees.