Macron, DiCaprio, CNN all cite this dubious number.
“The more carbon that can be taken out of the atmosphere and put into forms that are more stable is a good thing, and forest vegetation is one of those good ways to store carbon,” said Robin Chazdon, a professor at the University of Connecticut.
The Amazon is also a hotspot for biodiversity, or the thousands of species—including insects, wildlife and plants—that live in the rain forest. As the Amazon continues to burn, those species are in danger, Chazdon added. Ultimately, oxygen from the Amazon doesn’t matter all that much, scientists say. There’s plenty of oxygen in the atmosphere that has been built up over thousands of years. Even if the Amazon was completely destroyed, the supply of oxygen in the atmosphere wouldn't be in jeopardy, Foley said. Oxygen levels are primarily regulated by long-term geological forces, such as plate tectonics, not oxygen from photosynthesis, he added.
“The Amazon is so precious and deforestation is a huge problem, for climate change, biodiversity and indigenous people living there,” Foley said. “But we can scratch one thing off the doomsday list here, we don’t have to worry about the world’s oxygen levels.”
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