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The ocean holds 25 quadrillion tons
That's the estimated weight of all dissolved minerals in Earth's oceans. Every cubic mile contains about 120 million tons of salt.
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Water is the only substance that expands when it freezes
Frozen water expands 9%, cracking pipes and splitting rocks—but it also makes ice float, keeping fish alive.
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Water can be liquid at -40°C without freezing
"Supercooled" water stays liquid way below freezing until you tap it—then it instantly turns to ice before your eyes.
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Modern homes are dirtier than ever
Urban pollution, microplastics, and device off-gassing mean we're cleaning more intensively than any generation in history.