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Australia's Forests Face Doubled Mortality Amid Rising Temperatures

1/6/2026

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Summary

Story summary

Australia’s forests show mortality rates more than doubling in tropical rainforests since the mid-20th century.
Mortality rates tripled in warm temperate forests, based on 83 years of data from over 203,000 trees.
Tree growth plateaued or declined, while deaths rose due to physiological stress from rising temperatures.
The trend may reduce carbon sequestration and biodiversity, and abandonment of monitoring sites could hinder future research.

History

Historical Context

The Australian Conservation Foundation was established in 1950, reflecting a growing environmental awareness. By the 1980s, studies indicated that tree mortality rates in tropical rainforests had doubled, impacting over 203,000 trees. This trend, driven by rising temperatures, highlights ongoing concerns about biodiversity loss and forest health, underscoring the need for sustained conservation efforts in Australia’s diverse ecosystems.

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Story summary

Australia’s forests show mortality rates more than doubling in tropical rainforests since the mid-20th century.
Mortality rates tripled in warm temperate forests, based on 83 years of data from over 203,000 trees.
Tree growth plateaued or declined, while deaths rose due to physiological stress from rising temperatures.
The trend may reduce carbon sequestration and biodiversity, and abandonment of monitoring sites could hinder future research.

1 / 2