So take a minute to look at their impact reports and then we can discuss the evidence.
https://justdiggit.org/wp-content/uploads/2024/06/Justdiggit...
Sorry I shared the main link— they are an NGO that raises money, that’s how it works.
Water bunds, and other approaches to re-greening are part of a United Nations-funded project. You can see other examples (including instructions) at these sites:
https://www.decadeonrestoration.org/
Instructions:
https://amshaafrica.org/index.php/building-water-bunds-a-ste...
I just find it hard to understand that if you really found out digging holes has this much impact, and you truly care, that you wouldn't share schematics and detailed guides on how to do it in your own land, does that make sense? They would of course still try to do larger projects, but it just feels strange enough to cause doubt for me. Sorry if it's a misjudgement.