About the article on exporting vater from Canada to the US. Has any study been made on how much energy would be needed to transfer vater from a place like the great lakes to a place like Las Vegas.
I understand that the pumps draining the aquifiers usually run on natural gas.

If I were canadian, I think, I would start taking diving lessons and brush up on my knowledge on electronics and chemestry.
Not that I'm trying to imply anything.

In the 70s there was the
North American Water and Power Alliance (NAWAPA)
Google this and get lots of hits.

Decades ago a plan was floated to create a slurry coal pipeline from Wyoming to Lake Michigan. The plan involved a parallel pipe carrying water to the coal fields. The energy needed to lift millions of gallons per day to ground a mile higher made the railroad a better choice. Most Canadian water is at elevations under 1000 ft while where it is needed is at elevations of at least 3000 ft.
A better solution would be to install air cooling systems at powerplants since generating electricity uses nearly half the water Americans uses. Concurrently we could install drip irrigation systems for those farms in dry areas.