How does climate change affect Champagne production?

• A. It causes rising temperatures, flooding, and shorter growing seasons, affecting grape ripening and acidity.
• B. It reduces rainfall and lengthens growing seasons, enhancing acidity.
• C. It has no significant effect on grape ripening or acidity.
• D. It only affects red wines, not Champagne.

Answer: (A)

Climate change shifts the temperature and rainfall patterns that grapes experience, and Champagne relies on a delicate balance of ripeness with high natural acidity. Warmer temperatures accelerate grape ripening, pushing up sugar levels and often lowering acidity as acids are diluted or consumed, which can destabilize the crisp, edged profile that Champagne base wines need. In addition, more extreme weather events, including heavier rainfall and floods, can stress vines, affect soil drainage, and disrupt harvest timing. The combination of higher temps, flood risk, and altered growing-season dynamics makes it harder to hit the traditional targets for ripeness and acidity, so this description best captures how climate change can impact Champagne production. The other statements don’t reflect the commonly observed impacts—reduced rainfall with longer growing seasons, no significant effect, or effects limited to red wines—so they aren’t as accurate.