This Phys.org article “Global rice production has nearly doubled over 50 years despite climate change” reports good news that is couched in incredulity. The authors are correct to highlight this remarkable success story and the data show that humanity has become dramatically better at feeding itself over the past half century, even as atmospheric carbon dioxide concentrations increased and the climate modestly warmed. What the authors miss, however, is the obvious conclusion staring them in the face: rising CO₂ and warmer temperatures have likely been part of the reason for that success.
For decades, the public has been told that climate change threatens global food production. Yet this new study from researchers at the University of Illinois reveals a striking reality: global rice production nearly doubled from the 1960s to the 2010s. That is not a story of agricultural collapse. It is a story of extraordinary human success.
The researchers conclude that improved management practices, including expanded irrigation, increased fertilizer use, and better farming techniques, were the primary drivers of rising rice production. They are almost certainly right. Modern agriculture has become vastly more productive thanks to advances in technology, genetics, infrastructure, and agronomy.
But there is another important factor highlighted in the study that deserves far more attention. The researchers acknowledge that rising atmospheric carbon dioxide was “the primary environmental factor contributing to increased rice production by enhancing photosynthesis and improving water-use efficiency.”
That finding should not be controversial. Carbon dioxide is not merely a greenhouse gas. It is also the fundamental building block of plant growth. Through photosynthesis, plants combine CO₂, water, and sunlight to create the sugars that fuel growth and food production.
Without carbon dioxide, there would be no crops, no forests, and no food chain.
For years, scientists have documented the CO₂ fertilization effect. Higher atmospheric CO₂ concentrations generally allow plants to grow faster and use water more efficiently. Satellite observations have shown significant global greening over recent decades, with expanding vegetation across many regions of the world. Crops are part of that story.
Curiously, the study emphasizes an estimated 7 percent reduction in rice production due to climate-related factors from 2006 to 2015, while giving comparatively little attention to the fact that global rice production still nearly doubled over the broader period examined.
If climate change were the overwhelming threat to food production often portrayed in media coverage, one would not expect rice production to have increased by nearly 100 percent over the same period. Instead, the world has seen rising yields, improved food security, and the ability to feed billions more people than in previous generations.
The study demonstrates that environmental changes are not uniformly negative. In fact, the authors explicitly note that rising atmospheric CO₂ increased rice production by boosting photosynthesis and water-use efficiency. That point deserves to be front and center, not a footnote to “despite climate change.”
The broader lesson is not that climate challenges should be ignored. Farmers have always adapted to changing conditions, whether those changes were driven by droughts, floods, temperature shifts, pests, or market demands. Human ingenuity remains the most important agricultural resource.
What this study actually shows is that adaptation works. Improved farming practices have increased productivity. Better irrigation has expanded yields. New technologies have made agriculture more resilient. And rising atmospheric CO₂ has provided measurable benefits to plant growth along the way.
Taken together, those factors have produced one of the greatest agricultural success stories in human history.
Unfortunately, much of the climate discussion focuses almost exclusively on potential future harms while overlooking measurable present-day benefits. The result is a public narrative that often sounds far more pessimistic than the evidence warrants.
Rice feeds more than half the world’s population. According to this study, global rice production nearly doubled over the past 50 years and this is clearly evident in the figure below.
That is not evidence of a food system in decline. It is evidence of a food system that has become dramatically more productive and resilient. The researchers deserve credit for documenting that achievement. But the larger takeaway is even more significant than they acknowledge.
The combination of human innovation, agricultural modernization, and the fertilization effect of rising atmospheric CO₂ has helped create a world that produces far more food than it did a half century ago.
Anthony Watts is a senior fellow for environment and climate at The Heartland Institute. Watts has been in the weather business both in front of, and behind the camera as an on-air television meteorologist since 1978, and currently does daily radio forecasts. He has created weather graphics presentation systems for television, specialized weather instrumentation, as well as co-authored peer-reviewed papers on climate issues. He operates the most viewed website in the world on climate, the award-winning website wattsupwiththat.com.
Originally posted at ClimateREALISM
