> The same thing happens in Saudi Arabia where they had some amazing results by (oversimplified, yes), digging some swales and putting some rocks on steep hills

> The same thing happens in Saudi Arabia where they had some amazing results by (oversimplified, yes), digging some swales and putting some rocks on steep hills. The grass was coming back, trees were growing. And that's it, cut, no more info. You are probably talking about Al Baydha. As far as I understand, the project ran 2009-2016, and last information in Wikipedia is from 2020. https://en.wikipedia.org/wiki/Al_Baydha_Project https://en.wikipedia.org/wiki/Al_Baydha_Project https://www.youtube.com/watch?v=T39QHprz-x8 https://www.youtube.com/watch?v=T39QHprz-x8