What you need to know: This has zero impact on oxygen levels. It might be a real...

		BurningFrog on Aug 24, 2019 \| parent \| context \| favorite \| on: Does the Amazon provide 20% of our oxygen? What you need to know: This has zero impact on oxygen levels. It might be a real problem for CO₂. Anyway, the geological history of oxygen is pretty wild: https://en.wikipedia.org/wiki/Geological_history_of_oxygen