In France, climate change is already affecting one of the country's most emblematic industries — winemaking. French vintners say heat, drought and erratic weather are altering the landscape and their centuries-old way of working.
Brothers Remi and Gregoire Couppé are fourth-generation winemakers who craft a top vintage, grand cru St. Emilion. In the past few years they've been confronted with some new challenges. Remi Couppé, 44, says there's no denying the weather is getting hotter and drier.