The Man Who Single-Handedly Converted a Washed-Out Land Into a 1,360 Acre Forest
This immediately brought to mind:"The Man Who Planted Trees" the book which was adapted into an animated film that won the Acadamy Award for Best Animated Short Film and Short Film Palme d'Or in 1987https://www.youtube.com/watch?v=v_7yEPNUXsU