How many people lack clean drinking water? adequate sanitation?
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"The Great Unwinding" »"The Great Unwinding"
Is "The Great Unwinding" a cause or consequence of "collapse?" »Is "The Great Unwinding" a cause or consequence of "collapse?"
Fundamental Challenges »Fundamental Challenges
How many people lack clean drinking water? adequate sanitation?
Drinking water: 783 million (2013) »Drinking water: 783 million (2013)
Sanitation: almost 2.5 billion (2013) »Sanitation: almost 2.5 billion (2013)
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