Winemakers turn to technology & sustainable methods to mitigate the effects of climate change on wine

leading to lower yields and changes in the flavour profiles of wines, while excessive rainfall can increase the risk of diseases and pests

Finally, climate change is leading to more frequent and severe bushfires, destroying vineyards and affecting the quality of grapes produced Smoke taint is a particular concern, as smoke from bushfires can penetrate the grape skins and affect the flavour profile of wines

The impact of climate change on the flavour profiles of grapes is complex, with changes depending on the grape variety, region, and specific weather conditions However, some general trends have been observed across Australian wine regions

One of the most significant changes is the increase in sugar levels in grapes Higher temperatures can lead to earlier ripening of grapes, which can result in higher sugar levels. This can lead to changes in the flavour profiles of wines, with a higher alcohol content and sweeter taste Wines produced in warmer regions may have a more pronounced fruit flavour, with notes of ripe tropical fruit, honey, and caramel.

However, higher sugar levels can also lead to lower acidity levels in grapes, which can result in changes to the flavour profiles of wines. Wines produced in warmer regions may have lower acidity levels, resulting in a flatter taste Wines from cooler regions may have higher acidity levels, resulting in a more vibrant, refreshing taste.

Smoke taint is also a concern, particularly in regions affected by bushfires Smoke from bushfires can penetrate the grape skins and affect the flavour profile of wines, resulting in a smoky, ashy taste This can be particularly problematic for delicate white wines, which may not be able to withstand the strong smoky flavour

The impact of climate change on the Australian wine industry is significant and will continue to be felt in the future However, the industry is also taking steps to adapt to the changing climate and mitigate the impacts One strategy is to explore new grape varieties that may be more resilient to higher temperatures and changing weather patterns For example, some winemakers are experimenting with Mediterranean varieties such as Vermentino and Tempranillo, which may be better suited to warmer climates.

Another strategy is to explore new regions for grape growing As temperatures increase, some regions may become too warm for traditional grape varieties, but new regions may emerge as suitable for grape growing For example, Tasmania, known for its cooler climate, is becoming an increasingly popular region for wine production.

Finally, the industry is also exploring new techniques for winemaking and grape growing that may help to mitigate the impacts of climate change.

A warming of +2°C would lead to the destruction of 51 to 56% of the world’s winegrowing regions. At +4°C, 85% of the winegrowing land could be wiped out, or at least produce very poor quality wine