Perhaps the largest impact of global climate change will be on agriculture, and there is no crop more sensitive to changes in climate than wine grapes. As temperatures rise and average precipitation levels change, the signature wine-making regions such as those in France and California will be forced to adapt. There have been studies conducted analyzing the influence of weather and climate on wine since long before climate change made the headlines. Recently, studies have modeled climate change's effects up to 100 years into the future. The expected impacts are not bad at first, but in the end, they are not good.