The study found that if the global temperature rises by 3.6 degrees in the next 80 years, wine regions could shrink by up to 56%.
Researchers say 85% of those regions would be ruined if there's a temperature rise of 7.2 degrees.
Grapes are sensitive to temperature change, a co-author in the Proceedings of the National Academy of Sciences wrote.
Countries like Italy, Spain, and Australia could be most affected.