A few idealistic Canadians are trying to replant the world’s forests with flying machines

Drones rapid-firing seeds into the ground might seem like an unusual concept, a green-age version of a World War II movie scene. But, as Ahlström notes, loggers are using artificial intelligence, so those reforesting should do better than just shovels, too. She says the company’s drones can plant trees about 10 times as fast as humans can, especially in rugged, inaccessible areas, and often for less than $1 per tree.