Humans have been altering tropical forests for at least 45,000 years

For at least 45,000 years, humans have been altering tropical forests using techniques ranging from controlled burning of sections of forest to plant and animal management to clear-cutting and the establishment of urban centers. This is the finding of a recent review, which for the first time brings together data from studies all over the world. These findings counter the common view that tropical forests were pristine natural environments prior to modern agriculture and industrialization. They also have implications for today’s conservation efforts.