Headlines screamed about tipping points, mass die-offs of giant trees, and irreversible climate catastrophe. This study confirms it at continental scale: Amazon forests are thriving, not suffering, in a world with more CO₂ . With extra CO₂, understory trees living on the edge of survival at low light can now photosynthesize more efficiently and survive longer . LiveScience said: Trees of all sizes across the Amazon rainforest are getting fatter due to climate change, a new study shows. But the underlying data tells a different story: rising CO₂ is currently a net positive for the Amazon’s forests.