Interesting read. Of course, it wouldn't have hurt to title it "Denial is a River in Egypt.". I have more local issues with how long water will be available for agriculture, but the amount of poverty involved in lower.
I only read the short one, of course. Some of the problems that go with global warming don't seem so bad until you remember how much changing climate will interact with existing international borders to prevent adjustment.
2 true but I don't see it applies in this case. The Lower Nile would have to deal with shortages and saline intrusions regardless of where the borders are, and the climate variability piece calls for more storage in the basin, which topographically I think can only be usefully done with dams in the highlands, which as it happens Ethiopia wants to build anyway.