This couple started planting trees in a landscape that had all its trees chopped down. It looked like a desert. It was a barren hillside. They planted trees over many years and developed a native living forest in Brazil. It is now full of many species of birds, plants, animals, and trees. Check it out:
It takes quite a commitment. He's basically dedicating his life and finances to the project. He ended up with something wonderful. It takes a visionary sort of person to do this kind of thing. Amazing end product.