Douglas McMeekin was a failed businessman in Kentucky, and Juan Kunchikuy was a hunter in a remote nook of the Amazon rain forest who killed monkeys, deer and wild pigs with a blowgun and poison darts.

Now this unlikely pair has joined forces in a remarkable campaign to save the rain forest, “the lungs of the earth” that suck up the carbon we spew out. Of all the struggles to fight climate change, this is one of the more quixotic — and inspiring.