Global crop yields may see effect of climate change by 2030

Published 2021년 11월 5일

Tridge summary

A study conducted using advanced climate and agricultural models has forecasted a significant shift in corn and wheat crop yields due to anticipated increases in temperature, changes in rainfall patterns, and human-induced greenhouse gas emissions. The research projects a 24% decline in corn yields and a 17% increase in wheat yields by the end of the century, with corn's response to these changes being notably larger and more negative than previous models predicted. The findings have implications for global food production, especially in regions that rely heavily on corn, as the climate's effect on crop yields is expected to emerge as a noticeable signal more quickly for this crop. Additionally, wheat's growing range might expand in some areas due to rising temperatures. The study underscores the need to adapt crop production systems to the changing climate and highlights the potential repercussions for the pet food industry, which heavily relies on these crops.

Disclaimer:The above summary was generated by Tridge's proprietary AI model for informational purposes.

Original content

Corn crop yields are projected to decline by 24%, while wheat could potentially see growth of about 17%. Using advanced climate and agricultural models, scientists found that the change in yields is due to projected increases in temperature, shifts in rainfall patterns, and elevated surface carbon dioxide concentrations from human-caused greenhouse gas emissions. These changes would make it more difficult to grow corn in the tropics but could expand wheat’s growing range. “We did not expect to see such a fundamental shift, as compared to crop yield projections from the previous generation of climate and crop models conducted in 2014,” said lead author Jonas Jägermeyr, a crop modeler and climate scientist at NASA’s Goddard Institute for Space Studies (GISS) and The Earth Institute at Columbia University in New York City. The projected corn response was surprisingly large and negative, he said. “A 20% decrease from current production levels could have severe implications worldwide.” ...

Source: Meat+Poultry