Amazon Rain Forest Die-back

Amazon Rain Forest Die-back

There is a significant risk that the rain forest covering large areas of the Amazon basin will be lost as a result of an abrupt transition in climate toward much drier conditions and a related change in the vegetation system. Once the collapse occurs, conditions would likely prevent rain forest from re-establishing. The tipping point for this simulation is estimated to be near 3–5°C global warming (Lenton et al. 2008; Malhi et al. 2009; Salazar and Nobre 2010). A collapse would have devastating consequences for biodiversity, the livelihoods of indigenous people, Amazon basin hydrology and water security, nutrient cycling, and other ecosystem services. Continuing deforestation in the region enhances the risks of reductions in rainfall and warming (Malhi et al. 2009) and exacerbates climate change induced risks.

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