Napa Valley’s premium wine production could be cut in half in the next 30 years, according to a recent study by Stanford University.
The culprit is the world’s warming climate, which could render 50% of the land currently used to grow pinot noir, chardonnay and cabernet sauvignon grapes unsuitable. This troubling forecast is being echoed in wine regions worldwide.
As greenhouse gases turn up the heat on our planet, the world wine map is changing. High-value grapes are grown within a narrow climate window, Stanford earth scientist Noah Diffenbaugh said, making them more sensitive to temperature variations than standard crops.
In Tuscany, a Florence University study found that climate change will result in both increased temperatures and increased rain intensity, which could damage such wines as Chianti, Barolo, Brunello and Amarone. In Australia, drought attributed to climate change has already affected wine production in recent years.
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