No, I'm saying go up from the Sea of Cortez. No mountain ranges that way. That region is an active rift zone and with that combined with sea level rise will likely cause sporadic flooding anyway. El Centro is a dozen or two feet below sea level already. The alternative is, what, a toxic dust bowl with little economic value besides a lithium farm and a geothermal plant?
Okay, so now it's an international construction project, with all the political barriers that brings. And running close to the Colorado river.
> The alternative is, what, a toxic dust bowl
It's the Salton sea that caused the area to become "toxic". Bringing in more sea water with no solution to ever clean it up will provide just a short-term reprieve to the area, but exacerbate the problem long-term.
Your plan is to create a much larger toxic dust bowl.