There have been a couple attempts to do this previously. In India, there was one version used as a physical barrier on a customs line for 450 miles. Also happened to improve the area.
There's also an attempt in Africa in the Sahara that a bunch of countries signed on to. Unfortunately, their commitments have mostly amounted to talk without much funding or governmental support. Seen a few videos of locals who seems to believe in the idea, its just not getting much large scale help.
I also use Ecosia (https://www.ecosia.org/) as a web browser, and they supposedly plant trees based on number of searches and a percent diversion of search revenue. Seems to at least have some photographic evidence of money actually being spent somewhere.
Senegal's an example with desert work. Seems to have evidence that at least some amount of trees are being planted with videos (harder to falsify).
https://en.wikipedia.org/wiki/Inland_Customs_Line#Great_Hedg...
https://amocarroll.com/projects/tracing-the-great-salt-hedge
China has the China's Three-North Shelterbelt Program where they're trying to hold back the desert in North China and Inner Mongollia.
https://en.wikipedia.org/w/index.php?title=Three-North_Shelt...
Based on reports, it has issues with tree survival, yet seems to be making progress based on aerial surveys.
https://www.sciencedirect.com/science/article/pii/S259033221...
There's also an attempt in Africa in the Sahara that a bunch of countries signed on to. Unfortunately, their commitments have mostly amounted to talk without much funding or governmental support. Seen a few videos of locals who seems to believe in the idea, its just not getting much large scale help.
https://en.wikipedia.org/wiki/Great_Green_Wall_(Africa)
I also use Ecosia (https://www.ecosia.org/) as a web browser, and they supposedly plant trees based on number of searches and a percent diversion of search revenue. Seems to at least have some photographic evidence of money actually being spent somewhere.
Senegal's an example with desert work. Seems to have evidence that at least some amount of trees are being planted with videos (harder to falsify).
https://blog.ecosia.org/senegal/
https://blog.ecosia.org/tag/senegal/