The Impact of Climate Change on Cabernet Sauvignon

Climate change is significantly affecting the production of Cabernet Sauvignon, the most popular and widely planted wine grape. Rising temperatures, especially during critical growth periods, have resulted in heat waves that cause vines to shut down, leading to dehydration and undesirable changes in grape quality. For example, grapes can become more alcoholic and sweeter while losing their vibrant color and aromatic compounds, directly impacting the flavor profile of the wine. Winemakers are experimenting with blending new grape varieties that can tolerate heat better, but this poses a risk to their established brands, as consumers tend to favor recognizable options like Cabernet.