Climate Change Impacts on Grape Cultivation and Wine Quality

Climate change poses multifaceted challenges to viticulture, with rising temperatures, altered precipitation patterns and increased solar radiation reshaping grapevine physiology, berry composition and wine typicity. Elevated heat accelerates phenological stages, often shifting flowering, véraison and harvest into hotter periods, which can diminish acidity, alter sugar accumulation and disrupt the synchrony of aroma‐precursor development. Erratic rainfall and more frequent drought events place pressure on water resources, necessitating either greater irrigation or the selection of drought‐tolerant rootstocks and cultivars. Enhanced UV‐B radiation and heat stress modulate secondary metabolism, driving changes in phenolic and aromatic profiles that underpin colour, tannin structure and flavour. These alterations threaten the distinctiveness of long-established wine regions and call for integrated adaptation strategies. Responses span modified vineyard practices—such as canopy management, adjusted pruning dates and targeted irrigation—to strategic shifts in grape material, including the use of heat resistant clones and novel varieties. A systems approach that combines biophysical modelling with socioeconomic considerations is essential to safeguard yields, preserve regional typicity and support sustainable wine production under a rapidly evolving climate.

Research from Nature Portfolio

Recent studies have applied comprehensive vulnerability assessments to traditional wine regions, evaluating more than a thousand geographical indications through ensembles of climate, soil and socioeconomic indicators. These analyses reveal that southern and eastern European regions face the highest sensitivity to warming and water stress, due in part to rigid regulatory frameworks that limit grape diversity. The work proposes adaptive development pathways—ranging from flexible varietal regulations to investments in irrigation infrastructure and soil‐water management—to enhance resilience. Modelling exercises highlight that innovation within appellation rules and proactive optimisation of vineyard design can offset projected declines in suitability, thereby sustaining both yield and wine quality across diverse terroirs.

Climate Change Impacts on Grape Cultivation and Wine Quality publication trend

The graph below shows the total number of articles in climate change impacts on grape cultivation and wine quality across all publications each year (not limited to Nature Index journals).

Technical terms

Terroir: The combined effect of climate, soil, topography and human practice that gives wine its characteristic style.

Geographical Indication (GI): A legally defined region whose name on a wine label denotes origin and associated traditions.

Phenolic compounds: A class of secondary metabolites, including flavonoids and tannins, that influence wine colour, aroma and mouthfeel.

Véraison: The onset of ripening in grape berries marked by softening and colour change.

Drought tolerance: The capacity of grapevine varieties to maintain physiological function and yield under water deficit.

References

1. Climate resilience of European wine regions. Nature Communications (2024).
2. A Review of the Potential Climate Change Impacts and Adaptation Options for European Viticulture. Applied Sciences (2020).
3. An Update on the Impact of Climate Change in Viticulture and Potential Adaptations. Agronomy (2019).
4. The physiology of drought stress in grapevine: towards an integrative definition of drought tolerance. Journal of Experimental Botany (2020).
5. Temperature desynchronizes sugar and organic acid metabolism in ripening grapevine fruits and remodels their transcriptome. BMC Plant Biology (2016).
6. Solar ultraviolet radiation is necessary to enhance grapevine fruit ripening transcriptional and phenolic responses. BMC Plant Biology (2014).