from Ian Sample at The Guardian

Parts of southern Britain will become too hot for wine production within the next 75 years if summer temperatures continue to rise as rapidly as climate scientists predict. Stretches of the Thames Valley, Hampshire and the Severn Valley are expected to warm by as much as 5C by 2080, making them too hot to grow grapes. Instead, the areas will be more suited to currants, raisins and sultanas, which at present are cultivated in the hot climates of the Middle East and north Africa.