"After you bury your stuff deep in the ground, you would, then, plant trees on top, " Moalin told Ayrow in a recorded conversation.

CNN: STORY HIGHLIGHTS

"You can't just plant trees, walk away and let them grow, " says Tom Johnson, a managing director at Timberland Investment Resources, an Atlanta TIMO.

WSJ: Wealthy Investors Discover Timberland

Plant the trees, secure the soil, and you save the money, while simultaneously giving people employment and securing the future for animals like the golden lion tamarin.

BBC: Rio +20: Joining the ecological dots