The first thing that came to mind was seed bombing. https://en.wikipedia.org/wiki/Seed_ball#Seed_bombing https://en.wikipedia.org/wiki/Seed_ball#Seed_bombing E

The first thing that came to mind was seed bombing. https://en.wikipedia.org/wiki/Seed_ball#Seed_bombing https://en.wikipedia.org/wiki/Seed_ball#Seed_bombing Edit: This doesn't account for all the volunteers that they say participated in the effort, so they probably didn't use this method.