Core Insights - The Amazon rainforest is experiencing an increase in tree size, with an average growth of 3.2% every decade, correlating with rising atmospheric CO2 levels [1][3] Group 1: Research Findings - A study monitored 188 fixed plots in the Amazon rainforest over more than 30 years, during which atmospheric CO2 concentration increased by nearly 20% [3] - Both large and small trees in the Amazon are growing larger, which aligns with the "fertilization effect" caused by increased CO2 [3] - The research confirms that large trees significantly contribute to CO2 absorption, demonstrating the resilience of the Amazon rainforest in carbon sequestration despite climate change [3] Group 2: Environmental Impact - The study highlights the devastating effects of deforestation in the Amazon and emphasizes that large tropical trees, some hundreds of years old, cannot be replaced solely by planting new trees for equivalent carbon storage or biodiversity [3]

Core Insights - The Amazon rainforest is experiencing an increase in tree size, with an average growth of 3.2% every decade, correlating with rising atmospheric CO2 levels [1][2] - The research involved over 60 universities globally and monitored 188 fixed plots in the Amazon over more than 30 years, noting a nearly 20% increase in atmospheric CO2 during this period [1] - The study highlights the significant carbon absorption capacity of large trees, confirming the resilience of the Amazon rainforest in carbon sequestration despite climate change [1] Environmental Impact - Deforestation in the Amazon has devastating effects, as large tropical trees, some hundreds of years old, cannot be replaced by newly planted trees in terms of carbon storage or biodiversity [2] - The health of giant trees is crucial for maintaining local ecosystem integrity, and ongoing deforestation poses an increasing threat to their survival [2] - Understanding how these large trees respond to climate threats and their seed dispersal mechanisms has become a critical issue [2]