Brazil’s post-election challenge: What President Lula needs to change to keep the Amazon forest standing

In the wake of Brazil's recent election, the Amazon rainforest narrowly avoided a catastrophic fate. As Flávio Bolsonaro lost his bid for power and President Lula was reelected, the focus now turns to addressing the various threats that still loom over the region. These threats include the potential for the forest to collapse due to a combination of ongoing global climate change from greenhouse gas emissions, regional climate change from deforestation, and forest degradation resulting from logging, fire, and edge effects.

Climate change is a pressing concern, as the Amazon rainforest, like the global climate, is nearing a tipping point. Global warming is rapidly approaching a stage where it could escape human control, leading to a "runaway greenhouse" effect. Temperatures would soar, even if humans were to reduce their direct emissions from fossil fuels and deforestation to zero. Forest fires, soil and ocean warming, and other indirect anthropogenic sources would fuel further warming, creating a "hothouse Earth."

If the climate tipping point is crossed before the Amazon forest collapses, the altered climate would swiftly destroy the remaining forest. Conversely, if the forest were to collapse first, the resulting greenhouse gas emissions would rapidly push the climate system past its tipping point. Both threats are intimately interconnected, and the devastation would extend beyond Brazil, affecting the entire world. The mass mortality of the human population would overshadow all other concerns.