I'm sorry, but information about Brazil is wrong. It's been more than 15 years that Cubatao Valley is not the most poluted place in Brazil. In the early 80's there was plenty of health problems due to a failure in planing the valley occupation rules. Since the 80's plenty of new regulations and incentives made possible to the city to receive the ONU prize for Environment Recuperation Symbol City. Today, although poluted is very far from being one of the most poluted places in Brazil. Another misinformation is about Tiete river and Cubatao river, although close to each other (about 50 miles) Tiete river flows into the continent, while Cubatao river flows into the sea.
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