Grape harvesters in France's Champagne region have begun picking grapes earlier than usual, as heatwaves and drought accelerate the ripening of the crop.

Workers started before dawn on Friday August 14, taking advantage of cooler temperatures before the midday heat. The official harvest began on August 12, although some producers started as early as August 6.

Winemaker Benoit Velut said starting the harvest in early August would have been unthinkable when he was younger.

Producers are also facing a smaller crop, with around 30% of grapes lost to spring frost, while drought has further reduced yields and the size of grape clusters.

To maintain production, Champagne makers are drawing on reserve wines from previous years. Industry leaders say they are also exploring new grape varieties and cultivation methods to adapt to a changing climate.

The earlier harvest is part of a longer-term shift. Velut's father, Denis, recalled that when he was a child, harvesting typically began in late September or even October.

"Since the vineyard is here and will outlive us, it's up to us to adapt," Velut said. He also warned that climate change could eventually alter the taste and aroma of Champagne.

"Perhaps we need to make our consumers accept that there will be a transition towards champagne profiles that will change a little bit as well."