I know we need to conserve water and such but why? Doesn’t it eventually flow back into the ground or evaporated and rained back down regardless of how it’s consumed, so it’s a cycle? Do we lose a bit per cycle?
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Also let’s say you have a bunch of big cities around a Great Lake. And everyone used lots of water. So the cities build infrastructure that supplies that amount of water, it’s not necessarily “stored” in huge tanks or watered but if say 5-10 billion litres are used each day, plus probably another 20 billion in irrigation that’s 30 billion litres that aren’t in the lake, they’re not evaporating to rain elsewhere. They’re not reflecting the sun. They’re not altering the temperature of the surrounding area. It might only be day 0.01% of the water of Lake Ontario but even small changes in the environment can have a huge impact.
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