Winnipeg Free Press - by Gwynne Dyer
In 2007, oil drillers found a reservoir of an estimated 846 million barrels of heavy crude in Yasuni National Park, in Ecuador's part of the Amazon. But the park is home to two indigenous tribes that have so far succeeded in living in voluntary isolation -- and it is listed by UNESCO as a world biosphere reserve. A single hectare of Yasuni contains more species of trees than all of North America. Details here.