SANLIURFA, TURKEY - APRIL 25: Shepherd talks on cell phone, charged with solar panels carried by donkeys, in Turkey's Sanliurfa on April 25, 2016. Shepherds, spend most of their times at tablelands to herd animals and cannot find any place to charge their phones, use this method to solve their battery issue in order to call their relatives in case of emergency and listen to music. (Photo by Halil Fidan/Anadolu Agency/Getty Images)

SANLIURFA, TURKEY - APRIL 25: Shepherd talks on cell phone, charged with solar panels carried by donkeys, in Turkey's Sanliurfa on April 25, 2016. Shepherds, spend most of their times at tablelands to herd animals and cannot find any place to charge their phones, use this method to solve their battery issue in order to call their relatives in case of emergency and listen to music. (Photo by Halil Fidan/Anadolu Agency/Getty Images)