Yet within the industry — just as among the public — a heated dispute has broken out over the role of global warming on winemaking. In places such as California, where irrigation is more common, grower associations insist there has been almost no impact. But in some parts of Europe where irrigation is far more rare — such as England and France — the changes appear more pronounced.
“We can already see in Europe that the harvest date is two weeks earlier than two or three decades ago, and that, it seems, is at least partly due to climate change,” said Serge Delrot, research director at the Grape and Wine Sciences Institute in Bordeaux. “All regions [in France] are looking at this seriously now.”
Changing conditions also seem to be benefiting Champagne — the northernmost of France’s major wine regions. Julien Duval-Leroy, secretary general of the Duval-Leroy champagne house, said record heat in 2003 yielded a vintage with a more alcoholic aftertaste. But overall, he said, other climatic factors — including moisture and wind — have combined with slightly higher temperatures to provide some banner vintages.
“2008 was something sublime for your cellar,” he said.
He — like other French winemakers — has a hard time taking English fizz seriously. “I suppose it could be fine for domestic consumption, but not much beyond that,” he said.
The English beg to differ.
For decades, grape production in the pea-green hills of southern England was largely limited to a Frankenstein’s monster of German hybrids that did well in colder climes. In 1990, an American couple began producing the first English sparkling wines from champagne grapes brought from France. Their timing, it appears, was impeccable.
Slightly warmer temperatures were making the region increasingly ideal for champagne grapes, which can thrive with less sunlight and in milder weather than red wine grapes or even those used to make some still white wines. Under widely recognized trade treaties, the word champagne is reserved for sparkling wine produced from the celebrated region in France of the same name. Spain, meanwhile, has become known for cava and Italy for prosecco. But British vineyards remain at odds over what, if anything, to dub English bubbly — with none of the names floated, including Britagne and Merret, gaining much traction.
The role of technique
Winemakers here contend that a combination of more sophisticated vineyards and a changing climate has improved quality and consistency. Grapes are maturing earlier, curtailing the threat of frosts and allowing greater absorption of sunlight in the key final weeks before harvest.
French winemakers, however, counter that England’s relatively higher moisture levels will limit its potential as a fine-wine region. In addition, here as elsewhere, weather patterns have appeared to become more erratic — last year, for instance, was the wettest on record in a century.
For the vineyards at Nyetimber — one of the most celebrated English sparkling-wine houses — bad weather meant a near-total loss of last year’s grape crop. “Climate change is going to have its challenges,” said Cherie Spriggs, the company’s winemaker.
Nevertheless, newcomers such as Driver are convinced that climate change is leveling the playing field for English wines. The 48-year-old attended a viticulture course in nearby Brighton and plunked down $15 million to set up one of Britain’s largest vineyards last year. Armed with oak barrels, equipment and a chief winemaker all imported from France, he is set to start producing his first wines this year.
“The English weather is finally going to be on our side,” he said, walking on the sloping Downs of East Sussex and pointing to the shining sun.
While French winemakers appear to see little threat from the English, a measure of resentment seems to be brewing.
Jonathan Medard, a 38-year-old French winemaker hired by Driver, said he entered a bar in Champagne last year with his English boss. When the bartender, whom he had long known, asked what he was doing these days, Medard replied: “I am making sparkling wine in England.”
Medard said the French bartender’s eyes narrowed before he said “Shame on you” and stormed off.
Eliza Mackintosh contributed to this report.