The dramatic effects of global warming on vines: an uncertain future for traditional wine
In 2025, global viticulture finds itself at a dangerous crossroads, marked by an unprecedented acceleration of global warming. Regions once renowned for their terroir, such as Bordeaux and Burgundy, are seeing their winegrowing landscapes disrupted by record temperatures, prolonged droughts, and extreme weather events. The gradual disappearance of yesterday’s wine, emblematic of our cultural heritage, illustrates the crisis that is now part of the daily lives of winegrowers. As the climate changes, it’s no longer just a few degrees that are being added, but an entire ecological, economic, and social dynamic that is crumbling.
According to an international study published in the American journal PLOS Climate on May 21, 2025, the scale of these transformations goes beyond simple climate variability. Researchers analyzed the growth of more than 500 grape varieties at various key stages of viticulture, highlighting an increase in days exceeding 35°C, impacting the ripening and composition of the grapes. This phenomenon, combined with recurring heatwaves, threatens the very integrity of traditional varieties, particularly those that make up the exceptional range of wines from Saint-Émilion, Domaine de la Romanée-Conti, and Château Lafite. As a result, classic wines from prestigious terroirs risk becoming memories of the past, destined to give way to new expressions, often richer in alcohol, but lacking their historical character.
Climate change and its direct consequences on wine production
The observed changes are not limited to a simple increase in temperatures: they are completely reconfiguring the vine’s growth cycle. Flowering, for example, is occurring earlier and earlier, which alters the synchronization with the development of the surrounding ecosystem and disrupts the ideal ripening of grape varieties.
Harvests are moving forward, often by a month compared to twenty years ago, leading to an increased concentration of sugars in the grapes. While this development may seem advantageous for producing higher-alcohol wines, it is also disrupting the aromatic palette. The complexity of fruity or floral aromas is gradually giving way to more candied or jammy notes, altering the taste signature of iconic wines such as Château Margaux or Château Haut-Brion. Thanks to increased monitoring, some producers are attempting to adopt adaptation strategies. These include:
💧 Water management, limiting irrigation to slow ripening
- 🌱 Selecting more heat-resistant grape varieties, such as certain hybrid varieties or those from hot regions
- 🧪 Changing cultivation practices to reduce vulnerability to extreme events
- Despite these efforts, tensions are rising. The sustainability of classic wines is being called into question more than ever, and some experts believe that the era of wine “as we know it” is about to end.
Discover the impact of climate change on our planet, the underlying causes, and the actions needed to preserve our environment. Learn about sustainable solutions and get involved in the fight against this global crisis.
Faced with these challenges, global warming is paradoxically opening doors to regions previously marginal or unexplored by viticulture. England, for example, is experiencing a real boom in the production of sparkling wines, rivaling the famous Champagne. Yorkshire, with its longer and warmer summers, could become a major player by the end of the century, with vineyards such as Domaine Laroche and Château d’Yquem already experimenting.
Similarly, Scandinavia is seeing the emergence of its first white wines, such as those from Domaine du Clos des Rois in Sweden and Denmark. These regions benefit from extended growing seasons, allowing them to cultivate previously unsuitable grape varieties, while experimenting with new winemaking techniques adapted to their harsh environments.
In Asia, China is gradually establishing itself as an innovative player, with vineyards in Ningxia and Yunnan modernizing their production. Geographic diversification helps reduce dependence on traditional terroirs, while fueling the curiosity of wine lovers seeking new experiences.
Region
| Type of wine | Expected climate impact | Current projects | Bordeaux |
|---|---|---|---|
| Reds and whites | Reduced finesse, increased alcohol | Reorganization of grape varieties, diversification | England |
| Sparkling wines, reds | Increased quality, heat-resistant | Development of new plantings | Sweden / Denmark |
| White wines | Longer seasons, better adaptation | Establishment of experimental vineyards | Yunnan / Ningxia |
| Reds and Yellows | Better Production Security | Modernization and Development Projects | Discover the challenges of climate change, its impacts on our planet, and the actions needed for a sustainable future. |
Terroirs built over centuries, symbols of tradition and oenological finesse, must face the threat of climate change. In Bordeaux, for example, winegrowers are collaborating with scientists to better anticipate and mitigate risks, notably by strengthening the resistance of their vines to frost and mildew. Biodynamic viticulture, practiced by Château Latour and Château Lafite, is gaining ground, seeking to create more resilient ecosystems.
For some, the solution also lies in experimenting with less sensitive grape varieties or changing the harvest date. The implementation of natural protective measures, such as planting trees or ground cover, helps moderate the impact of heat waves.
Another strong trend is the promotion of wines from atypical terroirs, with symbolic profiles linked to their resistance. For example, Château Haut-Brion is beginning to produce wines made from hybrid grape varieties, less vulnerable to drought and excessive heat.
Future challenges: between adaptation, innovation, and the loss of unique expertise
The decline of yesterday’s wines calls into question the future of a sector currently undergoing rapid change. The need to adapt quickly to these upheavals requires innovation and ingenuity. Some estates, such as Domaine de la Vougeraie and Château Margaux, are investing in research to develop resistant grape varieties while preserving their organoleptic quality.
Moreover, a sort of “cultural revolution” is taking shape, with renewed interest in organic viticulture, efficient water management, and the reduction of chemical inputs. These choices, often costly in the short term, nevertheless represent a way to hope to maintain a certain level of excellence in a context where the disappearance of yesterday’s wine seems destined if nothing is done. Major Objectives
Key Actions
| Innovative Projects | Expected Results | Climate Resilience | Development of hybrid grape varieties, adaptation of cultivation practices |
|---|---|---|---|
| Polymorphic vines, use of drones for management | More resilient wines, sustainability of terroirs | Heritage Preservation | Protection of iconic terroirs, promotion of historic wines |
| Innovations in oenology, preservation of ancient grape varieties | Maintaining the traditional style | Ecological Sustainability | Organic practices, efficient water management |
| Organic certification, renewable energies | Reducing the environmental footprint | Frequently Asked Questions about the disappearance of traditional wine in the face of climate change | Why is the wine of yesterday disappearing? |
Because climatic conditions are becoming incompatible with historic grape varieties, excessive heat and droughts are altering the terroir, making these wines difficult to produce in their classic form.
- What are the risks for French wine regions? The risk of crop loss, declining quality, increased disease, and extreme weather events are weakening traditional vineyards, such as Château Lafite and Château Latour. Will new regions be able to compensate for the loss?
- In the short term, some new terroirs, such as those in Yorkshire and Yunnan, are helping to diversify global viticulture, but adaptation will take decades and will not fully compensate for the disappearance of historical expertise. How can tradition be preserved while adapting?
- By investing in research, innovating while respecting heritage, fostering biodiversity, and promoting sustainable practices, some estates are seeking to reconcile heritage and change. Will the wine of tomorrow be as high-quality?
- The question remains open. While innovation allows for the creation of resilient wines, their sensory profile could evolve, making the task even more complex for oenologists and winemakers. Source:
- www.rse-magazine.com
