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Deforestation Cuts Amazon Rainfall by 74.5%, Warns Study

9/7/2025

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Summary

Story summary

A Brazilian research group found deforestation reduces rainfall during the Amazon's dry season by 74.5%.
Analyzing 35 years of satellite data, they noted a 21 mm annual rainfall decrease linked to deforestation.
Amazon temperatures increased by 2°C, with 16.5% due to forest loss.
Even a 10% vegetation loss can sharply impact rainfall and temperatures.
Continued deforestation may lead to further declines in precipitation and temperature rises by 2035.
Researchers will present findings at the COP30 climate conference in November.

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Story summary

A Brazilian research group found deforestation reduces rainfall during the Amazon's dry season by 74.5%.
Analyzing 35 years of satellite data, they noted a 21 mm annual rainfall decrease linked to deforestation.
Amazon temperatures increased by 2°C, with 16.5% due to forest loss.
Even a 10% vegetation loss can sharply impact rainfall and temperatures.
Continued deforestation may lead to further declines in precipitation and temperature rises by 2035.
Researchers will present findings at the COP30 climate conference in November.