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A proposed hydro-electric dam project in Chile is pitting environmentalists against developers, who say the project is crucial to meet the country's growing energy needs.

If a multi-billion dollar plan comes together, the pristine rivers and valleys in the far reaches of Chilean Patagonia would be lost for ever.

When the project got its final government approval in May, tens of thousands of people took to the streets to demand that the region remains untouched.

Craig Mauro reports from Aysen in Chile.

Source: Al Jazeera