Peter Gleick : World Water Day 2010 -- A trip through one of the worst slums in the world
Water Number: 2.6 billion people. In a new report released this week by WHO/UNICEF's Joint Monitoring Programme, it is estimated that 2.6 billion people still lack access to adequate sanitation services and 1.1 billion must still practice "open defecation" (a polite term for a demeaning practice), like those in Kibera. This number is virtually unchanged from past assessments as population growth continues to overwhelm efforts to provide services.



















