Climate change and man-made fires could set off a cycle of self-perpetuating deforestation, scientists warn.

As fires rage across the Amazon, a growing number of scientists are raising the alarm about a nightmare scenario that could see much of the world's largest rainforest erased from the Earth.

Climate change, along with the fires and other man-made forces, appear on the verge of triggering a significant change in the Amazon's weather system.

No one knows for sure whether and when this might happen, though some scientists who study the Amazon ecosystem call it imminent. If it does happen, a body of

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A threat greater than fires

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Could the Amazon die?

A climate change time bomb