https://www.earth.com/news/half-of-plants-used-in-reforestation-projects-do-not-survive/ https://www.earth.com/news/half-of-plants-used-in-reforestat... gives a

https://www.earth.com/news/half-of-plants-used-in-reforestation-projects-do-not-survive/ https://www.earth.com/news/half-of-plants-used-in-reforestat... gives a reference for half of planted trees dead in 5 years. Your CO2 capture figure is widely quoted, including in those places. But can you find a scientific paper that it goes back to? I'm a little wary of figures that I can't find a real reference for.