Wildfires and extreme heat are wreaking havoc on wine regions from Bordeaux to B.C.

https://i.cbc.ca/ais/e9e5db60-14f6-4b99-b1f5-41ad04f404b1,1785212946364/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C860%2C8256%2C4644%29%3BResize%3D%28620%29" title="Firefighters spray water during a wildfire in Lege-Cap-Feret, southwestern France on July 25, 2026.

Scientists have long warned that climate change caused by human use of fossil fuels will make periods of drought more intense and longer-lasting, creating the ideal conditions for wildfires." width="620" />

Winemaking has always depended on weather, but climate change is making weather patterns more unpredictable — extreme heat, drought, hail and wildfires are reshaping harvests and yields in regions from Bordeaux in France to B.C.'s Okanagan Valley.

Experts and wine industry insiders say it impacts everything from financial planning to growing techniques and decisions about what kinds of grapes to plant.