It's unfortunate that in the midst of an extremely busy international news day and during a week of important, breaking news, World Water Day, that's today, March 22, is likely to get lost in the media shuffle. If you can break away from the news out of Libya and Japan long enough though, clean water and adequate sanitation remains a problem of acute concern for billions of the people on earth. More than 1 billion do not have access to a reliable supply of safe drinking water and more than 2.6 billion endure inadequate sanitation. You need only regard the accelerating crisis in Haiti where more than 250,000 have been afflicted with cholera and more than 4,600 killed by the disease to understand its importance. But beyond acute crises like Haiti, diarrhea remains a major cause of death among the world's children. Find out more about water and what you can do to promote a sustainable and safe supply at water.org or World Water Day.