Evidence map›Paper›PMID 42487517›Full record

ArticleGlobal change biology2026

Amazon Dry Season Will Lengthen Under Future Climate.

Igor José Malfetoni Ferreira, Nathália S Carvalho, Lina M Mercado, Stephen Sitch, Douglas Kelley, Chantelle Burton, Débora Joana Dutra, Scott Barningham, Maria L F Barbosa, Julia Mindlin and 4 more

Abstract read
In one paragraph

Article in Global change biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Igor José Malfetoni FerreiraRemote Sensing Postgraduate Program (PGSER), Coordination for Education, Research and Outreach (COEPE), Brazil's National Institute for Space Research (INPE), São José dos Campos, São Paulo, Brazil.ORCID 0000-0003-1723-3372
Nathália S CarvalhoLancaster Environment Centre, Lancaster University, Lancaster, Lancashire, UK.ORCID 0000-0003-0651-6967
Lina M MercadoFaculty of Environment, Science and Economy, University of Exeter, Exeter, UK.ORCID 0000-0003-4069-0838
Stephen SitchFaculty of Environment, Science and Economy, University of Exeter, Exeter, UK.ORCID 0000-0003-1821-8561
Douglas KelleyWater and Climate System, UK Centre for Ecology & Hydrology, Wallingford, UK.ORCID 0000-0003-1413-4969
Chantelle BurtonMet Office Hadley Centre, Exeter, UK.ORCID 0000-0003-0201-5727
Débora Joana DutraRemote Sensing Postgraduate Program (PGSER), Coordination for Education, Research and Outreach (COEPE), Brazil's National Institute for Space Research (INPE), São José dos Campos, São Paulo, Brazil.ORCID 0000-0003-3748-5622
Scott BarninghamFaculty of Environment, Science and Economy, University of Exeter, Exeter, UK.ORCID 0009-0000-8257-4101
Maria L F BarbosaWater and Climate System, UK Centre for Ecology & Hydrology, Wallingford, UK.ORCID 0000-0002-4702-2974
Julia MindlinLeipzig Institute for Meteorology, Leipzig University, Leipzig, Germany.ORCID 0000-0002-5911-9984
Celso H L Silva-JuniorAmazon Environmental Research Institute (IPAM), Brasília, Federal District, Brazil.ORCID 0000-0002-1052-5551
Dhruba J GoswamiFaculty of Environment, Science and Economy, University of Exeter, Exeter, UK.ORCID 0009-0004-1452-1437
Luiz E O C AragãoRemote Sensing Postgraduate Program (PGSER), Coordination for Education, Research and Outreach (COEPE), Brazil's National Institute for Space Research (INPE), São José dos Campos, São Paulo, Brazil.ORCID 0000-0002-4134-6708
Liana O AndersonRemote Sensing Postgraduate Program (PGSER), Coordination for Education, Research and Outreach (COEPE), Brazil's National Institute for Space Research (INPE), São José dos Campos, São Paulo, Brazil.ORCID 0000-0001-9545-5136

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 381715/2026-4Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.892286/2023-00Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Finance Code 001
6 · The paper itself

Abstract

The Amazon rainforest is a key component of the Earth system, regulating regional climate, sustaining high biodiversity and carbon stocks. However, it is threatened by climate and land-use changes. In recent decades, the region has experienced intensified droughts and heatwaves, trends expected to worsen under future warming. In this study, we assess how the timing, length, and spatial distribution of the dry season across the Amazon is projected to change this century under different Shared Socioeconomic Pathways. Using a multi-model ensemble of the Coupled Model Intercomparison Project (CMIP6) weighted according to their RMSE performance, we estimate monthly water balance based on precipitation and evapotranspiration from 2000 to 2100. We calculated dry season onset, end, and length from accumulated water deficits, providing a spatially explicit characterization of seasonal dynamics. We find a significant lengthening of the dry season in 35% of the basin under low-emission scenarios (SSP1-2.6) and up to 56% under high-emission scenarios (SSP5-8.5), with increases of up to 2 months in the southern and eastern Amazon by 2100. Such changes pose major risks for forest degradation, regional water availability, and climate feedback, potentially reducing the biome's role as a carbon sink. With such large changes even under low emission, our findings demonstrate the urgent need for spatially targeted climate adaptation strategies and mitigation policies that consider future changes in seasonal water availability. While such strategies are essential to enhance societal resilience, safeguarding forest ecosystems and preserving Amazonian hydrological functions ultimately depend on ambitious efforts to reduce greenhouse gas emissions. These actions are essential not only for local and regional sustainability but also for global climate stability.

Indexed as

Climate ChangeDroughtsRainforestSeasonsBrazilClimate ModelsModels, TheoreticalAmazoniaCMIP6dry season dynamicsearth system modelsremote sensingwater deficitweighted multi‐model ensemble

Identifiers

PMID42487517
PMCPMC13392597

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.