Climate change vs wine

Climate change is shifting precipitation and seasonal patterns, and increasing the duration and frequency of extreme heat, cold, wet and dry episodes.

Extreme events are costly to the wine industry, attributed to a declining production.

Source: http://money.cnn.com/2018/04/24/news/wine-prices-worst-harvest-60-years/index.html

Weather and climate change challenge winemaking in several ways

  • More frequent heat waves trouble an industry that prefers not to irrigate.
  • More frequent spring frost events destroy blossoms.
  • More intense thunderstorms cause extensive hail damage and even wildfires.
  • Wetter summers increase the chance of diseases like downy mildew.
  • Pollen are washed and blown away by more extreme rain and storm events.
  • Warmer springs and autumns reduce wine acidity and increases alcohol content, altering wine identity.
Frost damage – Jonathan Ducourt