US EditionClimate change cuts crop yields, even with adaptation efforts: Study
- A 2025 study led by a University of Illinois researcher projects that, despite adaptation measures, global yields of the six primary staple crops could decline by around 25% by the end of the century due to climate change.
- The study analyzed data from over 12,000 regions in 55 countries and found wealthier breadbasket regions face larger losses due to warming of about 3°C by 2100, roughly our current trajectory.
- Corn and wheat, especially in the U.S., Canada, China, and Russia, are projected to decline by 30 to 40%, while rice is more adaptable and may avoid large losses under warming.
- Hultgren noted that the regions facing the greatest risks tend to suffer the most significant losses, estimating that each 1°C rise in temperature would reduce food availability by about 120 calories per person each day.
- The study warns that such yield declines could lead to higher food prices globally and raise concerns over food security and political stability, especially in poorer countries with limited adaptation resources.
15 Articles
15 Articles
Scientists warn climate change could cut crop yields up to a quarter, North America would be hit hardest
Climate change is on track to reduce by 11 percent in 2100 the yields that today provide two-thirds of humanity’s calories from crops, even taking into account adaptation to a warming world, scientists said Wednesday.
Climate Change Could Cut Crop Yields Up To A Quarter
Climate change is on track to reduce by 11 percent in 2100 the yields that today provide two-thirds of humanity's calories from crops, even taking into account adaptation to a warming world, scientists said Wednesday.
We’re producing more food than ever before — but not for long
Globally, humanity is producing more food than ever, but that harvest is concentrated in just a handful of breadbaskets. More than one-third of the world’s wheat and barley exports come from Ukraine and Russia, for example. Some of these highly productive farmlands, including major crop-growing regions in the United States, are on track to see the sharpest drops in harvests due to climate change. That’s bad news not just for farmers, but also fo…
What farmers' adaptation to climate change means for the future of food
Think food prices are high now? Climate change could significantly cut production of six staple food crops around the world — including wheat production in Canada, a new study finds. Here's what difference farmers' adapation could make — and what the options are for Canada.
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