Three summers’ worth of unprecedented high heat in the world’s key tomato-producing regions—Australia, Spain, and California’s central valley—have led to a precipitous decline in tomato paste stocks, the key ingredient for ketchup and other condiments. California, which produces a quarter of the world’s tomatoes, and 95% of the tomatoes used in U.S. canned goods, delivered nearly 5% less than the expected crop in 2021, and 10% less in 2022 due to the ongoing drought, according to the United States Department of Agriculture. Record-setting precipitation earlier this year helped with drought conditions, but it also flooded fields, forcing farmers to postpone planting, which could lead to reduced yields this year as well.