Why can’t we pipe water to southwest US?

Question

We pipeline oil from Canada to Texas, why can’t we pipeline water from the Great lakes to the south?

Edit: thank you all who replied, I’ve gathered that it is technically possible, but would come with a huge amount of legal, environmental, and practical issues due to the amount of water that would actually be needed. It sounds like there are far more practical solutions available if the need became dire enough.

In: 45

Answer 1

Look up NAWAPA on YouTube. It’s a plan from the 50s to transport vast quantities of water from the north of Canada to supply a good chunk of the entire US with fresh water.

It would reshape the entire geography of North America.