AGARTALA, INDIA - MARCH 21: A workers fills plastic barrels with water to distribute them to the restaurants, on the eve of the World Water Day in Agartala, capital of Tripura state of India on March 21, 2017. World Water Day is marked on 22 March every year to raise awareness of the water crisis facing much of the world's population. The UN estimates that more than 663 million people do not have a safe water supply close to home. (Photo by Abhisek Saha/Anadolu Agency/Getty Images)
