US Research Shows: Climate Warming Affects Global Food Production Capacity
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Researchers at Stanford University and Columbia University used models to analyze the relationship between global climate data from 1980 to 2008 and the production of four major agricultural products: corn, wheat, rice, and soybeans.
They found that during this period, if the global temperature did not increase, Russia’s wheat production could have been increased by more than 10% from the actual level, and India, France, and China’s wheat could also increase by several percentage points; China, Brazil and France’s Maize production will also be higher than actual production.
The researchers concluded that global corn and wheat production capacity has dropped by 3 to 5 percentage points over the past 30 years due to warming, and the impact on rice and soybean production capacity has been negligible.
The researchers also found that during this period, temperatures in the farming season in almost all regions of Europe, most parts of Asia, Africa, and South America rose by an average of several degrees Celsius, increasing the probability of extremely hot weather occurring during the farming season in these areas. However, there is one notable exception in the world. Unlike global trends, temperatures in the Midwestern corn and soybean belt did not increase during the summer farming season. Researchers are still unable to understand the reasons.
The results of this study will be published in the new issue of the "Science" magazine in the United States on the 6th. The researchers pointed out that the trend of global warming is expected to continue in the next few decades, and the impact on grain production capacity will further expand under the backdrop of continuous increase in global food demand.
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