Varieties differ in their temperature tolerances, but grapes are generally produced in areas with a mean annual temperature of 10-20°C. Very little growth occurs below 10°C (or after 35c). Grapes require winter temperatures cool enough to induce vine dormancy, and a growing season long enough to allow fruit development.

The fact that there was a temporary warm period and cool period for a few centuries in one region isn’t relevant. We have climate data and co2 levels to compare with those periods, they are not the same thing.

bro we aint even done cooking yet, this is just the start.

If the AMOC shuts down, all bets are off.