The Amazon's oxygen claim is a myth
The Amazon rainforest is not the primary source of Earth's oxygen; its true ecological importance lies in absorbing carbon dioxide and regulating global climate.
The Amazon rainforest, often called the "lungs of the Earth," is widely believed to produce 20 percent of the world's oxygen. While it does generate substantial oxygen through photosynthesis, the ecosystem also consumes a large amount through plant respiration and decomposition. This means its net oxygen contribution is far less than commonly thought.
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