Fragile Earth (9 pictures)

7 / 9

Argentina, Brazil and Paraguay: Iguaçu falls, February 1973 and May 2003. Some of the most spectacular waterfalls in the world lie at the junction of Argentina, Brazil and Paraguay. The isolation of this region gave rise to the unique Paranaense rainforest ecosystem, which supported thousands of unique species. The image on the left shows early evidence of deforestation. Thirty years later, right, the changes have been dramatic