This Researcher Captured Air from the Amazon in Dive-Bombs--And Found Grim Clues That the Forest Is Dying
Sep 22, 2023
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A researcher captures air from the Amazon rainforest, finding alarming clues about its decline. They discuss measuring carbon dioxide levels, the impact of climate change and deforestation on the southern Amazon, and the urgent need to stop deforestation.
The Amazon rainforest is no longer acting as a carbon sink and is releasing carbon dioxide due to deforestation and climate change.
Deforestation in the eastern Amazon has reached alarming levels, impacting global climate patterns and disrupting the vital rain chain.
Deep dives
Deforestation and Declining Carbon Sink in the Amazon
The Amazon rainforest is experiencing widespread deforestation, resulting in a significant reduction in its ability to absorb carbon dioxide and act as a carbon sink. The aerial research conducted by climate researcher Luciano Gatti reveals that much of the eastern Amazon, particularly the southeastern region, is now releasing rather than absorbing carbon dioxide. The extended dry season, increased temperatures, and reduced rainfall due to climate change are causing stress on the forest, making it more susceptible to degradation. Rampant deforestation exacerbates the situation by creating hotter and drier conditions, encouraging fires and undermining the health of adjacent intact forest areas. If deforestation and climate change continue unchecked, the southern Amazon region could become inhospitable for many tree species, with potentially devastating consequences for carbon storage and the water cycle.
Impacts of Deforestation on the Eastern Amazon and the Global Climate
Deforestation in the eastern Amazon, particularly the northeastern region, has reached alarming levels, with 37% of the original forest already cleared. This widespread deforestation not only directly affects the ecosystem and wildlife of the region but also has far-reaching consequences for the global climate. The loss of forest cover increases temperatures and reduces rainfall in adjacent intact forest areas, making them more susceptible to degradation and increasing the likelihood of wildfires. Additionally, the eastern Amazon plays a critical role in the water recycling process, with moisture from the Atlantic falling as rain in the east and then being returned to the atmosphere by trees, eventually moving westward. The degradation of the eastern forest could disrupt this vital rain chain, leading to a cascade of negative effects on regional and global climate patterns.
The Tipping Point for the Amazon Rainforest
The combination of deforestation and climate change has brought the Amazon rainforest to the brink of a tipping point. Computer simulations conducted by researchers suggest that if deforestation continues at its current rate and global climate change warms the planet further, the Amazon could reach a critical threshold. Beyond this tipping point, large portions of the Amazon would transform into degraded forest characterized by open canopies and reduced biodiversity, releasing vast amounts of carbon dioxide into the atmosphere and exacerbating global warming. This tipping point could be reached in just a few decades, underscoring the urgent need to halt deforestation and address the underlying causes of climate change.
One researcher has been hiring planes to strafe the sky over the Amazon rain forest to collect the air coming off the trees, and what she is finding is cause for alarm.