New Study Shows Risks of Amazon Deforestation. And Rewards of Protection. | Researchers examined the combined effects of tree loss and global warming in an effort to better understand how and when an ecosystem collapse could unfold.
New Study Shows Risks of Amazon Deforestation. And Rewards of Protection. | Researchers examined the combined effects of tree loss and global warming in an effort to better understand how and when an ecosystem collapse could unfold.
> when considering deforestation, we find a near system-wide transition of the Amazon forest (62−77% of the area) under the combination of a lower threshold range of global warming of 1.5–1.9 °C and deforestation of 22–28%
> Around two-thirds of the Amazon rainforest could shift into degraded forest or savannah-like ecosystems at 1.5-1.9°C of global warming if deforestation increases to roughly 22-28 percent of the Amazon
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[In particular, the study says:](https://www.nature.com/articles/s41586-026-10456-0)
> when considering deforestation, we find a near system-wide transition of the Amazon forest (62−77% of the area) under the combination of a lower threshold range of global warming of 1.5–1.9 °C and deforestation of 22–28%
[The press-release is rather a bit clearer about it than the NYT](https://www.pik-potsdam.de/en/news/latest-news/deforestation-lowers-threshold-for-amazon-degradation-to-below-2degc-warming)
> Around two-thirds of the Amazon rainforest could shift into degraded forest or savannah-like ecosystems at 1.5-1.9°C of global warming if deforestation increases to roughly 22-28 percent of the Amazon