| Titre : | The economic impact of climate change on agriculture: a meta-analysis (2026) |
| Auteurs : | Y.A. Hussen ; K. Geleta ; M. Alemu |
| Type de document : | Article |
| Dans : | Agriculture & Food Security (vol. 15, n. 1, December 2026) |
| Article en page(s) : | p. 13 |
| Langues : | Anglais |
| Langues du résumé : | Anglais |
| Catégories : |
Catégories principales 07 - ENVIRONNEMENT ; 7.6 - Changement ClimatiqueThésaurus IAMM CHANGEMENT CLIMATIQUE ; IMPACT ECONOMIQUE ; EVALUATION DE L'IMPACT ; AGRICULTURE |
| Résumé : | Climate change poses a significant threat to global agriculture, with implications for crop productivity, farm income, and economic viability. This meta-analysis synthesizes evidence from 17 empirical studies (2015-2025) to quantify the economic impact of climate change on agricultural systems worldwide. Using a random-effects model, we find a statistically significant but modest negative overall effect size of -0.100 (p = 0.026), indicating consistent adverse pressures that, while modest in standardized terms, translate to measurable reductions in yield and farm income on a global scale. Despite substantial between-study heterogeneity (I2 = 98.9%), subgroup analyses reveal pronounced regional disparities: Europe and North America show strong negative effects, while Africa exhibits high vulnerability through a negative yet statistically non-significant trend, reflecting both limited data and measurement consistency. Multi-cropping systems demonstrate significant variability in both economic yields and climate resilience, whereas monocultures-particularly maize-show higher sensitivity to climate stress. Robustness checks, including heterogeneity diagnostics, sensitivity analyses using alternative effect measures, and formal publication bias tests (Egger's test: p = 0.208), support the direction and reliability of the findings. These results highlight the urgent need for region-specific adaptation strategies, investments in climate-resilient technologies such as drought-tolerant varieties and precision irrigation, and institutional reforms to mitigate adverse economic outcomes. This study provides policymakers and stakeholders with evidence-based insights to enhance agricultural resilience under accelerating climate risks. |
| Cote : | En ligne |
| URL / DOI : | https://doi.org/10.1186/s40066-025-00596-3 |
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