I’m often critical of robots and their relatives here, but these particular drones seem very good indeed. As that linked article explains:
swarms of (theese) seed-firing drones … are planting 40,000 trees a day to fight deforestation…(their) novel technology combines artificial intelligence with specially designed proprietary seed pods that can be fired into the ground from high in the sky. The firm claims that it performs 25 times faster and 80 percent cheaper compared to traditional seed-planting methodologies.
I am sure there is still a role for humans in reforestation, but the faster and cheaper it can be done, the better. A good use of technology.