@choui4 most immediately, it destroys habitats, and even if sparsely populated, semi-deserts are habitats to extraordinary species. Totalitarian counties in particular don't have the mechanisms of internal criticism and self-correctiveness, and as a consequence risk moving too fast for nature to adapt.

Hardly comparable, because we're talking of an opposing action here, but here are examples of effects of water engineering:
https://en.wikipedia.org/wiki/Northern/_river/_reversal
https://en.wikipedia.org/wiki/Colorado/_River/_Compact#Over-use,_climate_change,_and_other_issues
https://www.bbc.com/news/articles/c4gk1251w14o

[–] choui4@lemmy.zip 1 points 3 weeks ago

I will definitely check those links out.

It was ly understanding that, much like the regreening efforts in Africa, these deserts were formerly greened areas and thus were being returned to their natural state.