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Chicago Tribune
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Imagine explaining the importance of humans discovering water on Mars to an African villager about to carry 15 gallons of water from a river to his home two miles away. That humans can document the existence of water on Mars is intrinsically fascinating. It makes me ill, however, to know that humans revel in this discovery at the same exact time that 1.1 billion humans on Earth live without access to a safe water supply and more than 2.4 billion humans on Earth live without adequate sanitation.