Why Can't We Drink Seawater?
Drinking water from the ocean might seem tempting with all that water around, but there's a
big problem – it's salty, really, really salty! Ocean water contains about 35 grams of salt per liter, and our bodies can't handle that much salt. When we drink salty water, it actually dehydrates us because our kidneys have to work overtime to filter out the excess salt. Desalination, a process to remove salt from seawater, is used in some places to make it drinkable, but it's expensive and energy-intensive. Plus, the leftover salty brine can harm marine ecosystems when released back into the ocean…
The skinny
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