ELi5 Why can’t we build massive transnational water pipelines (like with oil) to transport water from large fresh water sources to drier areas?

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Obviously this wouldn’t relieve the issues caused by low snowpack and decreasing precipitation, but it could supplement the water used for everyday living or agriculture during times of drought right?

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Anonymous 0 Comments

We kind of have. California has an aqueduct that takes water from the San Joaquin/Sacramento basin to drier parts of SoCal, near Santa Barbara and LA.

It’s really expensive, and as others have noted, it’s pretty detrimental to the environment. Also, the places they’re taking from actually need it, too. Northern and Southern CA fight about water almost constantly, because the whole state is really ag-heavy, and generally pretty dry.

Also, it should be noted that “everyday living” and “agriculture” are vastly different. Ag takes a whole heckuva lot more than the average municipality uses for things like drinking water, cooking, sanitation, and yes, even the average homeowner watering their stupid useless lawn.

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