Climate Change and the New Age of Wildfire in Wine Country

There's a particular kind of dread that settles over a wine region when smoke shows up on the horizon. This summer, that dread has become routine across southern Europe. As of late July 2026, wildfires in France and Spain have forced roughly 330,000 people to evacuate, with Spain battling its largest fire on record during its fourth heat wave of the season. Outside Bordeaux, a blaze west of the city has burned more than 400 square kilometres, injured dozens of firefighters, and prompted the evacuation of thousands from coastal towns near the Bay of Biscay. It's the kind of fire behaviour, including a rare, self-generating "pyrocumulonimbus" storm cloud that meteorologists once associated almost exclusively with the American West or Australia.

https://youtu.be/11QGHpPn8yE

Burgundy hasn't been spared either. In early July, wildfires broke out across the Côte-d'Or, sending smoke drifting over the limestone slopes that shelter some of the world's most prized Pinot Noir vineyards near Nuits-Saint-Georges and Monthélie. The fires were mostly burning on forested hillsides, but the proximity alone rattled a wine community that has never had to think seriously about fire risk. Reports from the region describe smaller vineyard fire incidents scattered across Burgundy in recent weeks, and these are modest compared to the devastation further south, but still unprecedented for a region built around cool, damp Pinot Noir terroir.

Meanwhile in Spain, wildfires have pushed more than 63,000 people from their homes in Madrid, Toledo, and Ávila, and authorities have suspended mechanical grape harvesting in those provinces. Smoke has also drifted into Castilla-La Mancha, which alone produces roughly a third of Spain's wine. Fortunately, famous appellations like Rioja, Ribera del Duero, and Priorat sit far enough away that, for now, their harvests appear safe.

None of this is happening in a vacuum. It's the latest chapter in a story that's been building for nearly a decade, and wine regions have been an unlikely but vivid witness to it.

A Warning We've Seen Before

Wine grapes are strangely good at telling us when something has gone wrong with the climate, because they are so sensitive to smoke. The compound responsible, guaiacol, seeps into grape skins and can leave wine with an ashy, campfire-like flavour, a phenomenon winemakers call "smoke taint." It first became a widely recognized crisis in California after the October 2017 Northern California fires tore through Napa and Sonoma counties, causing tens of millions of dollars in vineyard damage. Three years later, the 2020 fire season was worse. Smoke drifted from Oregon to British Columbia, and California growers left roughly $600 million worth of wine grapes unharvested rather than risk a tainted vintage.

Australia's wine industry learned the same lesson at an even larger scale. During the catastrophic 2019–2020 bushfire season, more than 17 million hectares burned across the country, and growers in the Hunter Valley found much of their fruit unpickable. A decade earlier, Victoria's "Black Saturday" fires killed 173 people and swept through vineyards in the Yarra Valley during a heat wave that pushed temperatures past 47°C.

What connects Napa, the Yarra Valley, and now the Côte-d'Or and Castilla-La Mancha is a warming, drying climate that is making fire season longer, hotter, and more erratic almost everywhere grapes are grown. Researchers now warn that without steep cuts to greenhouse gas emissions, extreme wildfire events could increase by as much as 50% by the end of the century.

Terroir Meets a Changing Climate

Winemakers talk endlessly about terroir - the specific soil, slope, and microclimate that gives a wine its character. Climate change is quietly rewriting that equation everywhere, forcing growers to reconsider grape varieties, invest in smoke-detection technology, and look at clonal diversity. Burgundy's producers, who built centuries of tradition around a cool, temperate climate, are now grappling with a risk their counterparts in California and Australia have already been living with for years.

The fires burning through Gironde, Madrid, and the Côte-d'Or right now are a continuation of a pattern that stretches back through Victoria, Napa, and the Douro. A pattern that keeps getting worse the longer we wait to address its root cause.

Watch the video above for a deeper look at how climate change is reshaping the wine world we live in.