1.1 billion lack access to clean water; 2.6 billion live without decent sanitation; 4 billion without waste water disposal-that's approximately 1/6, 1/3 and 2/3 of the world's population respectively.

1.1 billion lack access to clean water; 2.6 billion live without decent sanitation; 4 billion without waste water disposal-that's approximately 1/6, 1/3 and 2/3 of the world's population respectively.

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