Striking Photos Show How Important This Basic Necessity Really Is

If you have access to clean water, you probably don't think twice about it, at least not on a daily basis. We hardly ever think about what it would be like not to have clean water — we turn on the tap at home, grab a bottle after a long run, and barely even notice when the waiter comes to refill our water glass. But for millions of people, having access to clean water isn't a sure thing. 

According to UNICEF, roughly 663 million people worldwide don't have access to clean drinking water, while 2.4 billion people across the globe don't have access to sanitation facilities. Almost 1,000 children die every day because of illnesses caused by a lack of clean water, which is one of the leading causes of death for children younger than five years old, UNICEF notes.