Published February 26, 2026
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Heavy precipitation in February 2026 Brazil Floods likely influenced by both human-driven climate change and natural variability
Authors/Creators
- 1. CNRS Délégation Ile-de-France Sud
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2.
Columbia University
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3.
University of Oxford
- 4. Barcelona Supercomputing Center - Centro Nacional de Supercomputación (BSC-CNS)
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5.
Istituto Nazionale di Geofisica e Vulcanologia
Description
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Depressions similar to those producing the February 2026 Brazil floods are up to +6 mm/day (15–20%) wetter than they were in the past.
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This event was driven by very rare meteorological conditions.
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We mostly ascribe the heavy precipitation during the February 2026 Brazil floods to human-driven climate change, while natural climate variability likely played a modest role.
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ClimaMeter_2026024_BrazilFloods.pdf
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