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For a long period, ecologists supposed tree rings were not present in tropical trees due to a lack of temperature and rain variations in the trees' surroundings.
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UArizona researchers were leaders in a world-wide effort to understand topical trees and their futures under climate change. They found that heat and drought slow the growth of tropical trees, a major absorber of carbon dioxide.
To address extensively changed forest successional circumstances, 20th- and 21st-century climatic shifts, and quickly shifting wildfire regimes in the present age, scientists suggest landscape-level adaptation.
Researchers at the University of Arizona predict a staggering 56 to 91% decline in individual tree growth in the future.
"The growth declines we're forecasting will mean less uptake of atmospheric carbon dioxide in the future by Arizona's forests."