It shows the level of our self-regard as humans to call the third planet from the sun "Earth". Three quarters of the planet's surface is covered by water, and therefore, inaccessible to us, yet we still emphasise the land bit.
Water never leaves the planet; there is about as much out there now as there was in the beginning. On a wet planet, you cannot be short of water; we are just short of unsalted water where we need it. Today there is water everywhere, but it is getting harder to get a drop to drink.
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