Residents of a village in the Darfur region of Sudan enjoy clean water provided by the "Dollar for a Drink" campaign of 16-year-old Joshua Guthrie. (BGR photo)
Clean, safe water is a life-and-death issue for almost 900 million people around the world. Water-related disease kills more than 3.5 million people each year – the vast majority of them children, almost half of them because of simple diarrhea. (BGR photo)