🔆Amazon Rainforest Trees Getting Bigger: New Study
đź“ŤWhy in Focus? âś… A study in Nature Plants (2025) shows trees in the Amazon rainforest are increasing in size by ~3.3% every decade. âś… This growth is linked to rising atmospheric CO2, which acts as a fertiliser (carbon fertilisation effect).
📍Key Highlights: ✅ Trees absorbing more CO2 → larger trees → stronger carbon sink capacity. ✅ Study based on long-term monitoring across 188 forest plots in the Amazon Basin. ✅ Amazon rainforest = world’s largest tropical rainforest, spanning 9 countries; ~60% in Brazil. ✅ Stores 150–200 billion tonnes of carbon; home to 10% of known wildlife species.
📍Challenges / Implications: ✅Deforestation undermines carbon storage & biodiversity despite CO2-driven growth. ✅ Large old trees are irreplaceable; planting new ones can’t match their carbon & biodiversity functions. ✅ Climate change & human activity threaten Amazon’s role as the “lungs of the planet.”
âś…Mains Question: Critically analyse the role of the Amazon rainforest as a global carbon sink. Discuss how rising CO2 levels and deforestation together shape its ecological significance. (250 words)
🔆Amazon Rainforest Trees Getting Bigger: New Study
đź“ŤWhy in Focus? âś… A study in Nature Plants (2025) shows trees in the Amazon rainforest are increasing in size by ~3.3% every decade. âś… This growth is linked to rising atmospheric CO2, which acts as a fertiliser (carbon fertilisation effect).
📍Key Highlights: ✅ Trees absorbing more CO2 → larger trees → stronger carbon sink capacity. ✅ Study based on long-term monitoring across 188 forest plots in the Amazon Basin. ✅ Amazon rainforest = world’s largest tropical rainforest, spanning 9 countries; ~60% in Brazil. ✅ Stores 150–200 billion tonnes of carbon; home to 10% of known wildlife species.
📍Challenges / Implications: ✅Deforestation undermines carbon storage & biodiversity despite CO2-driven growth. ✅ Large old trees are irreplaceable; planting new ones can’t match their carbon & biodiversity functions. ✅ Climate change & human activity threaten Amazon’s role as the “lungs of the planet.”
âś…Mains Question: Critically analyse the role of the Amazon rainforest as a global carbon sink. Discuss how rising CO2 levels and deforestation together shape its ecological significance. (250 words)
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