Research indicates that climate change will lead to significant reductions in global crop yields, especially for staple crops such as rice, maize, and wheat. Projections show that, for every 1°C rise in temperature, calorie losses could reach 120 calories per person per day. Despite the potential for farmers to adapt through improved practices and rising incomes—which could mitigate losses by 25% by 2050 and 33% by 2100—the overall outlook remains pessimistic, indicating severe challenges for global food production and security in a warming world.
In a high-warming future, we're still seeing caloric productivity losses in the order of 25% at global scale, said Andrew Hultgren, an environmental economist.
Rising incomes and changes in farming practices could stem the losses by about a quarter by 2050 and by one-third by 2100; however, they would not stop them entirely.
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