Why Clean Water Is a 'Best Buy' for Saving Lives

The problem of unsafe water is staggering. More than 3.4 million people die each year from water, sanitation, and hygiene-related causes. Unsafe drinking water is also a leading cause of diarrheal disease with nearly two billion cases globally every year. And an estimated 760,000 children under the age of five die from diarrhea each year, making it one of the leading causes of childhood mortality.