Years ago, I read about a plan to divert the Columbia River, which flows from Central BC into the US and forms the border between Oregon and Washington State into the Pacific at Astoria. The idea was to divert the water into Nevada, which is mostly empty desert, and then to hold it there until it could be sent as needed into California.
This looks good on a map, perhaps, but the problem is that Nevada is higher in elevation than Nevada and that central Nevada is an alkali desert, so the water would be also too high in salts to be useful for irrigation.
Water does not flow uphill, it would have to be pumped.
Canada does not control the Columbia or use its water south of the point where it enters the US along the Idaho/Washington border.
If irrigating with Columbia River water were a great idea, someone would have used it to irrigate western and central Oregon already.
it is safe to say that if Trump were president, nothing would be done about this somewhat silly plan.
