2002 and 2003 were great years for wine in France--heat waves helped grapes grow plump with sugar, which yielded a perfect balance of alcohol and acidity. You'd think that French wine growers would be happy about global warming- a couple of degrees rise in temperature would produce great wines all the time. But there is such a thing as too much sun. Plus, climate change also brings unpredictable weather. While adapting to changing weather is an inherent part of making wine, recently growers have noticed increased "strange" weather patters, which is making their work more difficult.

But no one is giving up the business yet. And as one grower says, if it gets to a point where its too hot to grow grapes in France, we'll have bigger problems than making wine!