6 in 10 people worldwide lack access to flush toilets or other adequate sanitation
'The research, published in ACS' journal Environmental Science & Technology, says the number of people without access to improved sanitation is almost double the previous estimate...2010 UN estimates concluded 4.3 billion people had access to improved sanitation and 2.6 billion did not' -- 'About 60% of the world's population does not have access to improved sanitation, up from the previous estimate of 38%'
