November 17, 2024
By Stephen Stofka
This is a bit longer than usual but in a conversational format. I will also leave copies of the in-text links in the notes at the end. The sources do not require a subscription.
This week’s letter is about our arguments. Some policies are implemented but the disagreements on the underlying issues are not resolved. The debate often detours through a maze of assumptions and perspectives, identities and loyalties before it can reach the main issue. Resistance and resentment simmer like the underground coal-seam fire in Centralia, PA that has been burning for six decades.
At the Constitutional Convention in 1787, delegates could not resolve the issue of slavery, and the southern states threatened to walk. The financial condition of the confederacy of thirteen colonies was desperate, making the new nation vulnerable to attack and encroachment by France and Spain. In a compromise, the delegates agreed to make the importation of slaves illegal after twenty years, but booted the issue down the road. For seventy years after the Constitution was ratified, the southern states periodically threatened to secede, and various compromises averted a crisis without resolving the issue. The 1820 Missouri Compromise was a key piece of legislation that kept the nation together. In 1857, the Supreme Court issued its Dred Scott decision which overturned the Missouri Compromise and public sentiment accepted the inevitability of civil war.
Climate change is not as emotional a topic as slavery or abortion, which I wrote about here. I will imagine a discussion between two groups of people who set policy for all the people in the country. Speaking for the first group is a person named Abel who claims that certain types of human activity are having a pronounced and growing effect on the climate. To counter these damaging effects, Abel’s group proposes regulating some activities and adopting different methods that will lower the impact of human activity on the climate. Cain, a spokesperson for the second group, is averse to most regulation of economic activity and argues that Abel’s claims and theories are a hoax. Any changes in climate are probably temporary and driven by natural physical variations that people can not influence.
Abel offered to present the evidence for his claim, but Cain dismissed the offer. Cain turned to page 156 of Nassim Taleb’s Fooled by Randomness and handed the book to Abel, who read the highlighted passage, “I can use data to disprove a proposition, never to prove one. I can use history to refute a conjecture, never to affirm it.”
Abel responded, “In An Enquiry Concerning Human Understanding, the 18th century philosopher David Hume wrote that we could not state with absolute certainty that the sun would rise tomorrow or that it would not rise. Knowledge gained from experience can only move to greater certainty or uncertainty. Each year’s climate data moves us closer to certainty that human activity is a significant contributor to climate change.”
Cain argued, “Our group requires incontrovertible proof, not just an increased certainty. Scientists were certain the climate was cooling in the late 1970s.”
Abel responded, “That is a myth that climate change deniers have used for decades to refute climate change. Peterson et al (2008) unraveled the making of that myth. J. M. Mitchell published his cooling hypothesis in 1963. When others checked his data, they found that his conclusions were based on weather station data in the northern hemisphere only. When researchers included data from the southern hemisphere, the conclusion was the opposite. The planet was warming.”
Cain interjected, “Scientists also claimed that world oil production had reached its peak in the 1960s, a theory known as Peak Oil.”
Abel responded, “Let me finish the rest of the story. In the 1970s, popular magazines like Newsweek promoted both theories as “news peg” headlines to attract readers’ interest. Controversy sells. There was already a broad consensus in the scientific community that the warming effect of man-made greenhouse gases were dominating any cooling effect from aerosols and natural factors. Prominent scientists like Carl Sagan presented that conclusion to Congress in 1985. In 1990, when the IPCC issued it’s first assessment of the global climate changes, it had already found a measurable increase in temperatures.”
Cain argued, “Look, technologies change and new data causes scientists to revise their opinions. The same could happen with climate change. There’s no sense in imposing regulations that disrupt economic activity as long as there is a chance that scientists could be wrong.”
Abel responded, “Your group casually dismisses sixty years of scientific data and increasingly accurate predictions. Hume pointed out that there is always a chance that any claim is wrong. We have to act on probabilities, not absolute certainty. Your group adopts the reasoning of jurors in a criminal trial who reach a conviction only if there is no reasonable doubt. Our claim is more like a civil trial where jurors reach a conclusion based on a preponderance of the evidence. Each year provides more evidence that human activity is having a significant effect on the global climate.”
Cain replied, “Well, some of your group’s proposals seem criminal to me so yes, we require evidence that is beyond a reasonable doubt. Our group is suspicious of policy proposals that affect our economic lives. We believe that the price system provides the best environment for voluntary cooperation. Prices emerge from the decisions and preferences of everyone.”
Abel nodded. “Science works like the price system, only slower. There’s a supply of research and data, and a demand for solutions and understanding. Scholars publish their research. They put their data and conclusions on the market, so to speak. The research community digests that data and methodology, points out flaws and presents alternative conclusions. Theories improve just like the products we buy.”
Cain objected, “Unlike the price system, there is no equilibrium point.”
Abel responded, “Yes, there is. Some consumers and suppliers of fossil fuels want research that concludes that there is little evidence for anthropogenic climate change. These groups fund organizations that hire researchers to publish position papers to that effect. Demand and supply meet, but the quality of the supply of research is lowered.”
Cain objected again. “These are reputable scientists presenting their conclusions. Look, even if there was some credible evidence that the use of fossil fuels was having an effect on the climate, our group favors price incentives, not regulations. Carrots, not whips.”
Abel countered, “The free market and price system doesn’t cope with negative externalities like pollution. Do you acknowledge that?”
Cain nodded. “Yes, but we think those externalities can be priced as well. The polluters can compensate others for the nuisance or trade among themselves for permits to pollute.”
Abel replied, “But that requires some government agency to set the prices or the allotment of permits.”
Cain nodded. “It’s not a perfect world. More regulations that affect economic outcomes only incentivize people and companies to find loopholes to avoid the regulations. Government agencies must not only regulate an economic activity like pollution from manufacturing, but they have to play watchdog to catch the actors trying to avoid the regulations. Regulatory agencies are not an efficient way to accomplish a goal.”
Abel asked, “What about social and economic justice issues? How can the price system cope with them? Let’s say some business owner thinks that all black people are inferior workers, so he offers black applicants half the wage he offers white workers. How does the price system handle discrimination?”
Cain shook his head. “Our group does not endorse discrimination of any type. We question whether it is the job of a government agency, particularly a federal agency, to try to correct those attitudes and behaviors. We support policies that encourage economic growth. More growth will promote employment which will create more bargaining power for workers. Employers will have to compete to hire workers. Black workers will have a greater choice of jobs and can refuse to work at a lower wage. Employers will end their discriminatory practices because it hurts their businesses.”
Able argued, “Using Taleb’s reasoning, any instance where the price system does not end discrimination would be cause enough to invalidate your conjecture. If the price system coordinates human activity and resources so well, why are there subsidies for suppliers and price controls for consumers?”
Cain shrugged. “Politics corrupts the price system. In a perfect republic, there would be no subsidies or price controls.”
Abel said, “You speak of the price system as though it were a natural force like gravity.”
Cain nodded. “It is a natural force of human interaction. Einstein said that gravity was the curvature of spacetime. The phrase ‘matter tells spacetime how to curve, and curved spacetime tells matter how to move’ captures an important element of his theory of relativity. Without political interference, suppliers and consumers tell prices how to curve and that curvature affects the decisions and behavior of both suppliers and consumers.”
Abel replied, “The price system provides incentives for a limited number of transactions or exchanges between people. There are economic activities where one party inflicts damage on another party and may not be aware of it. Pollution can affect people far from the source of the pollution as happened with acid rain. Decades ago, the amount of sulfur emissions from smokestacks near New York City were affecting farmers and wildlife in upstate New York. Climate change contributes to a global problem, making it more difficult to regulate with any price system. Human industrial activity contributes to the carbon dioxide blanket surrounding the planet. That blanket inhibits the release of solar energy from the earth’s lower atmosphere, causing ocean and air temperatures to rise. Heat seeks an equilibrium so that warming affects the convection of energy around the planet.”
Cain scoffed. “Your group is saying that a family driving a car powered with gasoline is affecting some people living in remote Kamchatka. Come on, there are limits to responsibility.”
Abel replied, “The family driving the car is affecting their own climate as well. The power plant in Kamchatka is affecting U.S. families. Climate change surpasses national borders. It’s the butterfly effect, an idea that mathematician and meteorologist Ed Lorenz proposed. How the beating of a butterfly wing could contribute to an initial state that eventually produced a tornado.”
Cain objected, “Butterfly effect or not, we can’t be regulating every little action that people do because it might contribute to some problem. In the Fable of the Bees, Bernard Mandeville imagined a society that collapsed after it prohibited all vices. We just have to accept that living bears some risks and unpleasant things. We can’t craft a perfect society. The price system promotes a natural system of checks and balances. Is it perfect? No, but it is better than a bunch of bureaucrats micromanaging our economic activities.”
Abel sighed. “Your group’s solution is to do nothing. If the world goes to hell, so be it?”
Cain replied, “We struggle to solve our own problems. Coordinating human behavior is difficult. The price system is a coordinating mechanism. Sure, it has flaws, but it is more democratic than any autocratic system of regulation. Even if human activity were causing the planet to warm up, how would we get other countries to comply? We can’t force everyone to think like we do.”
Abel asked, “There doesn’t seem to be any area of compromise on this, is there?”
Cain smiled. “A solution will emerge. Don’t worry. For two centuries at least, technological prowess has raised living standards and our life expectancy.”
Abel objected, “The cumulative effect of our technological prowess is causing the problem. How can it solve a problem that it is contributing to?”
Cain turned to leave. “You have no faith in human ingenuity and motivation. That is the real problem.”
Abel replied, “You put too much faith in the price system. That is an even bigger problem. Let’s discuss that next time.”
The debate may begin on climate change but often shifts towards each group’s assumptions and perspectives on an issue. Each group pays more attention to others in their group than arguments from the other side. The signers to the Declaration of Independence argued over the list of British offenses or usurpations included in the Declaration. They had only minor changes to the noble sentiments expressed in the opening paragraphs that we cherish today. The arguments against rebellion? Loyalist sentiments, as they were called, were stamped out. In the northern colonies, some of the Loyalists were driven out and their property confiscated. Force is the final arbiter of failed attempts to compromise.
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Photo by Susan Q Yin on Unsplash
A 16-minute excerpt of Carl Sagan’s presentation before a Republican led Senate committee in 1985.
The butterfly effect
natural physical variations that contribute to climate change.
The Dred Scott decision and the inevitability of civil war. Roger Taney, the Chief Justice and author of the court’s majority opinion, was initially nominated by President Andrew Jackson to be Secretary of the Treasury. Taney was the first cabinet nominee to be rejected by the Senate. Jackson then nominated Taney for the position of associate justice of the Supreme Court and met rejection again. Later, Jackson nominated Taney for Chief Justice, and the Senate confirmed him after much debate.
An underground coal-seam fire in Centralia, Pennsylvania burning since at least 1962.
Peterson, T. C., Connolley, W. M., & Fleck, J. (2008). The myth of the 1970s Global Cooling Scientific Consensus. Bulletin of the American Meteorological Society, 89(9), 1325–1338. https://doi.org/10.1175/2008bams2370.1