I watched this video a few days ago and what they've done is truly amazing.

I live in the Ozarks in SW MO and four of the five acres are hill side littered with rocks.

A few years ago I piled up some of those rocks in an area that was washing out and now it has about 8-10" of soil built up and is covered with mostly weeds growing.

When it cools down (we've had about a month of 100º temps here) I'm going start making rows of rock piles to catch soil and hopefully slow down the erosion and green things up a bit.

Nice video. Appears to go against Betteridge's Law of Headlines since it does reverse climate change in the area (if climate change was making it drier).

Seems a lot like the sort of changes beavers install in a river.

Won't it deprive downstream sources of sediment and flow when done at scale?

The lady in the vid, Valer Austin Clark, has some great lectures and slideshow presentations on YT if you search for her name and sort for 20+ mins. She built some absolutely massive rock dams that survived some huge floods.