
I usually don’t carry the title of an article I read into the title of my blog post, but this one was so right-on I had to use it. Did you have breakfast today? This is not a question of dietary management; it has to do with the health of our global populations.
The question brings a focus to whether in our warming climate our global food supply will be able to continue to provide the people of Earth with the food/calories they need in their daily lives. An article at the website “The Cool Down” (TCD) addresses this question and may be found at, New data uncovers dire situation about global food production: ‘Like everyone on the planet giving up breakfast’. The article discusses the findings of a recent study on issues of food production on our planet Earth where the global temperatures – and the global population – are both rising. As crop-lands fail under the pressure of global warming, food production will fall. It will be as the title states in part, “Like everyone on the planet giving up breakfast.”
I have written blog posts about the reality of global warming several times and have sent letters to recent presidents about whether we are planning for a climate that is not in-tune with our current world view. There is a high probability of disastrous events in our future if we do not make significant changes in how we address global warming. We need a plan for adaptations that will address regional changes in climate and the ability to successfully raise crops.
I believe we have a global food crisis brewing, and we need to act now to prepare for it. The signs of the crisis have been seen for several decades, but the ‘leaders’ of the world are slow to recognize it or to work to find global solutions. To help understand the root of global warming and the coming crisis, I have written several times about the Keeling Curve in past blog posts – as well as in letters to the White House. My past blogs that speak to the Keeling Curve can be read in; “CO2 – the Keeling Curve,” February 15, 2019; “Sweeping the Sky,” September 27, 2019; and “Open Letter to ‘Climate Change Activists’ who Disfigure Public Art,” September 7, 2024.
Briefly, the Keeling Curve is based on the work of Dr. Charles D. Keeling. In 1956 Dr. Keeling began a program to measure atmospheric gases, including Carbon Dioxide (CO2), at the Mauna Loa observatory in Hawaii. As these observations are plotted over time, they show an increasing level of CO2 with each passing year. The graph below, known as the Keeling Curve, shows this increase over time. Please note the rise following the Industrial Revolution and the dramatic increase following World War II. If you wonder about the saw-toothed edge of the curve, that is an indication of the rise in CO2 in the winter months when the leaves are off the trees and are not converting CO2 into Oxygen (O2). The downward slope of each “tooth” indicates the activity of the trees and other plants in the growing seasons of spring and summer as they remove CO2 from the atmosphere and convert it into O2. The curve shows that the amount of CO2 in the atmosphere increases – goes every upward – with each passing year. The more CO2 and other “greenhouse gases” in the atmosphere, the more global warming increases through a “greenhouse effect.”.

Using ice core data to establish the historical concentrations of atmospheric gases in the years and centuries before Keeling’s work, the curve can be extended back in time – in this instance back to before the Industrial Revolution.

These studies indicate without a doubt that the generation of CO2 gas – especially by burning coal to support and drive the industrial revolution – and its release into the atmosphere has had a terrific effect on the amount of CO2 in the atmosphere. The CO2 as well as other gases such as methane have caused the atmosphere to block heat capture from the Sun from being able to be reflected out into space and escaping from the Earth’s atmosphere. This inability for heat to escape into space causes a continual heating of the planet.
The CO2 and other gases are known a “greenhouse gases,” because they create a “greenhouse Earth” affect. It is like living in a glass-walled and glass-roofed greenhouse in which the heat of the Sun is captured and cannot escape. The purpose of a greenhouse is to maintain a warm environment inside the greenhouse which allows plants to survive and grow when it is too cold for them outside. But our “greenhouse Earth” benefit growth of crops for our hungry and growing population.
Ocean warming is also driven by the increase of atmospheric CO2 which drives increasing global temperatures. As we all know as the temperature of water rises, so does the evaporation rate from the water’s surface. This increase in evaporation increases the amount of moisture in the atmosphere which in turn retains more heat/unstable air which aids the generation of more and larger storms over the ocean.
The effect of our warming oceans also brings a rise in sea level since as the ocean’s are heated, the water of the oceans expands. This causes a rise in the sea-level which is evident along ocean beaches and marshes as well as in coastal ports and coastal rivers.
The salt water of the oceans and bays not only rises vertically in elevation but it also pushes out horizontally from the shallow near-shore ocean basin and pushes its way into coastal regions, where the salt water mingles with and displaces the coastal ground water.
Where you see the ‘ghost forests” of dead trees behind the beach the intrusion of saltwater is often the cause. A brief article on the concern about ghost forests may be found at Ghost forests haunt Atlantic Coast | US Forest Service.
In addition to this intrusion, coastal water tables – and many other water tables throughout the United States – are being sucked down by deep wells for agriculture, industry, and homes, all of which extract the ancient fresh ground-water. As the water tables are being drawn down by these wells, the wells have to be forced deeper sucking out more and more of the ancient waters. In areas where the surface of the Earth is no longer well supported as the groundwater is drawn further and further down, the surface layers shrink in elevation as the surface relaxes and compresses. A recent article on what is happening in the cradle of agriculture and civilization in the south of Turkey indicates that without the support of groundwater massive sinks holes can erupt in the landscape, https://www.theguardian.com/world/2026/feb/28/i-live-in-constant-fear-surge-in-giant-sinkholes-threatens-turkeys-farmers
There is also an opposite effect as the Earth slowly rebounds upwards. This has been happening since the last great ice age. When the vast ice sheets and miles thick glaciers melted away and their terrific weight was removed from the Earth’s surface, the elasticity of the Earth’s crust allows it to slowly rise as it readjusts to the missing weight.
All these interacting systems and events determine where and how fast the relationship of the water’s surface and the land (farms and people’s homes) are impacted by the rising sea-level that is brought on by global warming.
The general warming of Earth encourages spring to come earlier in some areas. There may be more rain – or less rain – in certain areas. This in turn changes the growing season of crops.
An example of the issues for a species in a time of climate change can be seen in the case of a lack of abundance of caterpillars for Pied Flycatchers in southern Britian during the bird’s nesting season. A brief article may be found at Hungry birds as climate change drives food ‘mismatch’ | ScienceDaily.
As spring comes earlier under the influence of climate change/global warming “leaves and caterpillars emerge earlier.” However, the Pied Flycatcher is a migratory bird and does not arrive to their nesting and breeding sites until the new spring is well underway. This is a “mis-match” between the emergence of the caterpillars which are a main source of food for the hatchlings. The change disrupts the pattern of mating and raising of new broods of young flycatchers. In order to continue their current cycle (is it millennia old?) the flycatchers will need to evolve and change their migratory and breeding patterns and return to their breeding area sooner in order to be able to find the large quantities of caterpillars they need to feed their young. The article quotes Dr. Karl Evans of the University of Sheffield; “Our work suggests that as springs warm [earlier] in the future less food is likely to be available for the chicks of insectivorous woodland birds unless evolution changes their timing of breeding.”
At the beginning of this blog post I mentioned an article on crop production which is the impetus of this post. This “The Cool Down” article addressed a recent study on the ability to cultivate six different grain crops raised in many locations around the world. The article also takes into account the adaptations to deter the impacts of global warming which are being used by farmers around the world.
The study was prepared by The Climate Impact Lab at the University of Chicago and published in Nature in June 2025. It is ‘open-access’ article and may be found online at, Impacts of climate change on global agriculture accounting for adaptation | Nature.
The study presents a picture of what could happen to the world’s ability to produce adequate agriculture to feed the 10 billion people (an increase of 2 billion from today) expected to live on Earth by the turn of the century. An interesting article on world population growth by the Pew Research Center can be found at 5 facts about how the world’s population is expected to change by 2100 | Pew Research Center.
Back to the question at the beginning of this blog post; Did you have breakfast today? This can be extended to a question of ability. Were you able to find breakfast today?
As the Earth continues to warm, just as there is an impact on the food for the Pied Flycatcher, there will be an impact on the ability of humanity to feed itself. Throughout the rest of this century the impact of global warming will cause growing-regions for the six studied food staples to move further and further toward the poles.
The study indicates that by the year 2100 the current fertile growing-regions in the middle of North America will likely have lost nearly 30 to 40% of their ability to produce crops. These growing areas will no longer be able to support the bountiful harvest they do today. The areas which will gain a stronger ability for wheat will migrate further north into the Tibetan Plateau, Northeast China, Mongolia, and Scandinavia – as well as the southern tip of South America.. The map of wheat production presented with the study provides a good example.

The study not only considers the factor of climate change but it also includes factors related to adaptation by farmers and their states and nations to maintain sufficient crop yield under global warming. But this is not equal across the Earth. Richer countries and populations can afford the research and development for ways to maintain – or even improve – crop yield.
But there is a bit of the flip-side as well. The breadbasket of North America has been fertile with sufficient water and a good growing season – so the states and countries and the framers have not been forced to seek or implement adaptations for climate change. The study presented in the Nature article presents a case where lack of preparation for adaptations lead to significant crop failure by the end of this century.
Finding and implementing adaptations to climate change will depend on the position of the government of those countries and whether they understand the coming change. If the presented prediction holds true, the breadbasket of North America will no longer produce the bumper crops that feed the world. High production areas will have shifted to other countries.
Yes, it is like the grasshopper and the ants. Sometimes the ants take pity on the grasshopper – and sometimes they do not.
I am not asking you to believe that the global warming road on which we find ourselves is human caused (I believe it is) – but I am asking you to understand that since the industrial revolution Carbon Dioxide (CO2) levels have been increasing. CO2 and other “greenhouse gases’ are trapping heat that would otherwise have been reflected off the earth and into space, and so the Earth – our home – where we get all our food – is warming and is changing our ability to grow crops as we have for thousands of years. This warming is happening right now and will continue to increase. We must ask ourselves what does this ongoing and increasing change do to the food supply for all the world’s people?
Then we must act.











