Amazonian tribes are facing new challenges as carbon credit dealers move into their forests, write Patrick Bodenham and Ben Cubby.
Peru's jungle city of Iquitos - first established on the myth of a land of lost gold and once a mecca for 19th century rubber barons - has long been frequented by profiteers.
The Spanish built the city as an outpost to look for El Dorado, a fabled land of gold. At the turn of the last century, the development of the car tyre sent thousands of businessmen on ornate steamships up the Amazon to Iquitos to extract rubber.
A new kind of businessman has now arrived in the jungle. The Australian property developer David Nilsson is not seeking rubber or gold, but the carbon dioxide locked up in millions of hectares of lush Amazon rainforest east of Iquitos.