*NOTE: All links below are clickable and lead to my sources.
My final grad school class is about Systems Thinking. I wouldn’t normally take a class like this but for some reason I was drawn to the topic. Systems Thinking is about unlearning linear thought (such as A causes B) and seeing the world and situations as one entire interconnected structure. At it’s core is the adage that “the whole is greater than the sum of the parts” which somewhat introduces the idea of emergent properties. It may sound hokey or like one of those things you learn in college with no real world application. I beg to differ.
I was first introduced to Systems Thinking (though not by name) when I read the book Freakonomics by Steven D. Levitt and Stephen J. Dubner. I highly recommend this read (I’ll even loan it to you). In Freakonomics the authors go on to explore counterintuitive relationships between seemingly unrelated variables. I won’t go into the details here but go read this book.
Now on to my point. All of you should know by now that I think Global Warming is a crock of ^$! Now answer me this. What is the link between global warming and global food shortages? I’ll tell you…ETHANOL! Unless you’ve been in a cave for the last year or have other people buying your groceries you’ve no doubt noticed the significant increase in food prices. Dairy, eggs, any wheat product, rice and many other core food groups have nearly doubled in price. Why? Ethanol!
Ok, so lets frame the system. We’ll look at two sets on unintended consequences of this biofuels craze driven by global warming alarmism. The first set we’ll look at how this is driving up food costs and increasing world starvation. I call this “Kill Me Now”. Then we’ll look at how the process of creating Ethanol! actually creates more carbon dioxide than it saves. I call this “Kill Me Later”. Get the title now?
Kill Me Now
We are faced with “global warming”. Global warming is caused by carbon dioxide accumulation (so they say). Some brilliant scientist says, ok, well lets add ethanol to our gasoline to make it pollute less. BAM! Instant carbon reduction. Politicians get on board and all of a sudden we have committed to us using 45% ethanol by 2015! This year alone it took nearly 20% of our grain to help meet that target (according to this article). This is a number that will only grow. Since much of the ethanol produced is made from corn, farmers are opting to convert their wheat and other crops to corn fields which drives up the cost of wheat. Additionally, this diversion of corn to biofuels has driven up the cost of meat and dairy products since much of livestock is corn fed. This new drive for Ethanol! has heavily contributed to a global spike in food costs. Americans are feeling the pinch and for most of us this is just an inconvenience, however, those less fortunate than us have it much worse. Many are facing starvation (especially in countries who are net importers of food) and have to spend nearly 75% of their wages on food. The UN is crying foul and some have predicted that this setback has cost us 7 years of progress in the global hunger fight.
President Bush recently released $200 million dollars in food aid to help but things are getting messy. When people are hungry rational though goes out the window. There is unrest in many of the poorer countries. It is not intuitive that in our fight to curb so called global warming we caused world hunger and unrest.
Kill Me Later
Now lets start again with global warming as our main variable. Again, global warming drives an increased use in ethanol. Well ethanol doesn’t grow on trees. The organic matter has to be processed. Not only does the machinery used to process the ethanol emit CO2 into the atmosphere, the process itself emits CO2. The US Departments of Agriculture and Energy sponsored a report on this and this is what they said (on page 19):
The fermentation of corn starch into ethanol generates CO2, which has a low economic
value and is expensive to move. Most ethanol producers vent CO2 to the atmosphere,
although a few ethanol producers are able to sell it.
So to get ethanol to lower CO2 we have to create CO2. Does that make sense to you? This would further drive up the levels of CO2 in the atmosphere thereby worsening global warming. In Systems thinking this is called a “Fix that Fails” archetype.
It gets worse though. Ethanol has become a profitable industry. As stated above, many farmers are converting their land to grow corn instead of wheat. Additionally, TIME Magazine reported a disturbing trend in South America and other places where the rainforests are being razed to create new farmland. This is a double whammy for carbon levels. Not only are you removing trees that absorb CO2 naturally, you are then turning around and burning them which releases even more CO2!
Causality
One tenet of Systems Thinking is the generation of Causal Loop Diagrams. These are pictures that represent the relationship between variables in a system. It can help one see the counterintuitive loops that drive system behavior. Below is a CLD I created for Ethanol! production.
Click to Enlarge

I won’t go into the details but here is a rundown. The arrow causally link the two variables. If there is a “+” sign at the end on an arrow is means that an increase in one drives an increase in the other (same direction). A “-” indicates that an increase in one drives a decrease in the other (opposite direction). Talking through my diagram starting with “Carbon Dioxide Levels” would go like this:
An increase in CO2 drives an increase in global warming which drives an increase in the use of biofuels which loops back and reduces the CO2 levels. The increase in biofuels also drives an increase in the conversion of organic matter which, as discussed above, further increases CO2. Likewise, an increase in biofuels leads to more demand for farming land which leads to more razing of forests which further increases CO2. Finally, an increase in biofuels decreases the crops for food which increases the cost which drives hunger and unrest.
Digestion
I know this is a lot of information to take in and this certainly doesn’t nearly capture the entire picture of what drives the system. This is just one glaring example of how global warming alarmism has made my pretzels cost more and others to starve to death. This is no stretch. Watch the news. Connect the dots. Maybe you will see that my cynicism and skepticism on global warming and what is being done about this supposed problem is well founded. I’d encourage you, my five loyal readers, to try and think systemically. I digress.
So which would you prefer, Kill Me Now by starving me to death or Kill Me Later as we are slowly cooked to death by rising global temperatures? All of a sudden I am hungry. Do you smell chicken? Oh, its Bob next door…