The Eco-Economy programs travel the world to join field workers taking part in one of the biggest investigations ever made into the state of the world's environment. The Millennium Ecosystem Assessment has taken four years and involves 2,000 leading scientists. A key finding is the complexity of the trade-off between economic development and preserving our environment. Many believe we can only achieve one at the expense of the other. In this first episode we visit Brazil, India and Peru. We find areas where the economy is destroying its natural support systems. But we also discover that saving the environment can go hand-in-hand with saving money.