A boy from Ecuador's Awa tribe stands on the 300,000 acres of Choco forest granted to his people in 1985. Sovereign indigenous peoples such the Awa and the natives of Yakutia in Russian Siberia have been able to exercise great control over their lands, barring any ecologically damaging incursions
As leaders gather for an earth summit, we bring you a special report on ways to transform industry, cars, energy and architecture