"World Water Day" showed up on my smartphone calendar two weeks ago. At that time I was in the Ulua Refugee Camps in Adjumani, northern Uganda, the overcrowded and temporary home of 800,000 South Sudanese refugees. I was taking the photo of this young girl. Look at her face, dripping with sweat. Look at the size (and imagine the weight) of the bucket she carries to her family's hut several times each day. She is about 6 years old. She doesn't take water for granted. She doesn't waste a drop. She knows that without water, she cannot drink or cook or bathe. Without clean water, she and her family will not survive. 1.8 billion people worldwide lack access to uncontaminated water. In today's world, "I thirst" is not only a biblical reference; it's a global crisis.