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Critical temperature for tropical tree lifespan revealed

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For the first time scientists have provided clear evidence that tropical tree lifespan decreases above a critical temperature threshold. Findings published in the journal PNAS (Proceedings of the National Academy of Sciences) show that across the tropics, tree lifespans decrease for temperatures above 25°C. Because temperatures are rising rapidly across large parts of the tropics, tree mortality...

High biodiversity in tropical forests supports carbon sinks

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A new study gives insight into the prevalence of nitrogen-fixing trees in tropical rainforests and calls into question prevailing hypotheses for why they are so much more abundant than in temperate forests. Levels of soil nutrients such as nitrogen and phosphorus can significantly affect forests’ ability to gain biomass and effectively absorb and capture carbon...