Why do so many people equate “natural” with “good”?

Dec 3, JDN 2458091

Try searching sometime for “all-natural” products. It doesn’t matter whether you’re looking for dog food, skin cream, clothing, or even furniture polish; you will find some out there that proudly declare themselves “all-natural”. There is a clear sense that there is something good about being natural, some kind of purity that comes from being unsullied by industrial technology. (Of course, when you buy something online that is shipped to you in a box carried on a truck because it’s “all-natural”….)

Food is the most extreme case, where it is by now almost universally agreed that processed food is inherently harmful and the source of all of our dietary problems if not all our social ills.

This is a very strange state of affairs, as there is no particular reason for “natural” and “good” to be in any way related.

First of all, I can clearly come up with examples of all four possible cases: Motherhood is natural and good, but gamma ray bursts are natural and bad. Vaccination is artificial and good, but nuclear weapons are artificial and bad.

Natural Artificial
Good Motherhood Vaccination
Bad Gamma ray bursts Nuclear weapons

But even more than that, it’s difficult to even find a correlation between being natural and being good. If anything, I would expect the correlation to run the other way: Artificial things were created by humans to serve some human purpose, while natural things are simply whatever happens to exist. Most of the harmful artificial things are the result of mistakes, or unintended consequences of otherwise beneficial things—while plenty of harmful natural things are simply inherently harmful and never benefited anyone in any way. Nuclear weapons helped end World War 2. Gamma ray bursts will either hardly affect us at all, or instantly and completely annihilate our entire civilization. I guess they might also lead to some valuable discoveries in astrophysics, but if I were asked to fund a research project with the same risk-reward profile as a gamma ray burst, I would tear up the application and make sure no one else ever saw it again. The kind of irrational panic people had about the possibility of LHC black holes would be a rational panic if applied to a research project with some risk of causing gamma ray bursts.

The current obsession with “natural” products (which is really an oxymoron, if you think about it; it can’t be natural if it’s a product) seems to have arisen as its own unintended consequence of something good, namely the environmentalist movement in the 1960s and 1970s. The very real problems of pollution, natural resource depletion, extinction, global warming, desertification, and ocean acidification led people to rightly ask how the very same industrial processes that brought us our high standard of living could ultimately destroy it if we left them unchecked.

But the best solutions to these problems are themselves artificial: Solar power, nuclear energy, carbon taxes. Trying to go back to some ancient way of life where we didn’t destroy the environment is simply not a viable option at this point; even if such a way of life once existed, there’s no way it could sustain our current population, much less our current standard of living. And given the strong correlation between human migrations and extinction events of large mammals, I’m not convinced that such a way of life ever existed.

So-called “processed food” is really just industrially processed food—which is to say, food processed by the most efficient and productive technologies available. Humans have been processing food for thousands of years, and with very good reason; much of what we eat would be toxic if it weren’t threshed or boiled or fermented. The fact that there are people who complain about “processed food” but eat tofu and cheese is truly quite remarkable—think for a moment about how little resemblance Cheddar bears to the cow from whence it came, or what ingenuity it must have taken people in ancient China to go all the way from soybean to silken tofu. Similarly, anyone who is frightened by “genetically modified organisms” should give some serious thought to what is involved in creating their seedless bananas.

There may be some kernel of truth in the opposition to industrially processed food, however. The problem is not that we process food, nor that we do so by industrial machines. The problem is who processes the food, and why.

Humans have been processing food for thousands of years, yes; but only for the last few hundred have corporations been doing that processing. For most of human history, you processed food to feed your family, or your village, or perhaps to trade with a few neighboring villages or sell to the nearest city. What makes tofu different from, say, Fruit Loops isn’t that the former is less processed; it’s that the latter was designed and manufactured for profit.

Don’t get me wrong; corporations have made many valuable contributions to our society, including our food production, and it is largely their doing that food is now so cheap and plentiful that we could easily feed the entire world’s population. It’s just that, well, it’s also largely their doing that we don’t feed the entire world’s population, because they see no profit in doing so.

The incentives that a peasant village faces in producing its food are pretty well optimized for making the most nutritious food available with the least cost in labor and resources. When your own children and those of your friends and neighbors are going to be eating what you make, you work pretty hard to make sure that the food you make is good for them. And you don’t want to pollute the surrounding water or destroy the forest, because your village depends upon those things too.

The incentives that a corporation faces in producing food are wildly different. Nobody you know is going to be eating this stuff, most likely, and certainly not as their primary diet. You aren’t concerned about nutrition unless you think your customers are; more likely, you expect them to care about taste, so you optimize your designs to make things taste as good as possible regardless of their nutrition. You care about minimizing labor inputs only insofar as they cost you wages—from your perspective, cutting wages is as good as actually saving labor. You want to conserve only the resources that are expensive; resources that are cheap, like water and (with subsidies) corn syrup, you may as well use as much as you like. And above all, you couldn’t care less about the environmental damage you’re causing by your production, because those costs will be borne entirely by someone else, most likely the government or the citizens of whatever country you’re producing in.

Responsible consumers could reduce these effects, but only somewhat, because there is a fundamental asymmetry of information. The corporation “knows” (in that each of the administrators in each of the components that needs to know, knows) what production processes they are using and what subcontractors they are hiring, and could easily figure out how much they are exploiting workers and damaging the environment; but the consumers who care about these things can find out that information with great difficulty, if at all. Consumers who want to be responsible, but don’t have very good information, create incentives for so-called “greenwashing”: Corporations have many good profit-making reasons to say they are environmentally responsible, but far fewer reasons to actually be environmentally responsible.

And that is why you should be skeptical of “all-natural” products, especially if you are skeptical of the role of corporations in our society and our food system. “All-natural” is an adjective that has no legal meaning. The word “organic” can have a legally-defined meaning, if coupled with a certification like the USDA Organic standard. The word “non-toxic” has a legally-defined meaning—there is a long list of toxic compounds it can’t contain in more than trace amounts. There are now certifications for “carbon-neutral”. But “all-natural” offers no such protection. Basically anything can call itself “all-natural”, and if corporations expect you to be willing to pay more for such products, they have no reason not to slap it on everything. This is a problem that I think can only be solved by stringent regulation. Consumer pressure can’t work if there is no transparency in the production chain.

Even taken as something like its common meaning, “not synthetic or artificial”, there’s no reason to think that simply because something is natural, that means it is better, or even more ecologically sustainable. The ecological benefits of ancient methods of production come from the incentives of small-scale local production, not from something inherently more destructive about high-tech industry. (Indeed, water pollution was considerably worse from Medieval peasant villages—especially on a per-capita basis—than it is from modern water treatment systems.)

We need to be honest about free trade’s costs, and clearer about its benefits

August 6, JDN 2457607

I discussed in a post awhile ago the fact that economists overwhelmingly favor free trade but most people don’t. There are some deep psychological reasons for this, particularly the loss aversion which makes people experience losses about twice as much as they experience gains. Free trade requires change; it creates some jobs and destroys others. Those forced transitions can be baffling and painful.

The good news is that views on trade in the US are actually getting more positive in recent years—which makes Trump that much more baffling. I honestly can’t make much sense of the fact that candidates who are against free trade have been so big in this election (and let’s face it, even Bernie Sanders is largely against free trade!), in light of polls showing that free trade is actually increasingly popular.

Partly this can be explained by the fact that people are generally more positive about free trade in general than they are about particular trade agreements, and understandably so, as free trade agreements often include some really awful provisions that in no way advance free trade. But that doesn’t really explain the whole effect here. Maybe it’s a special interest effect: People who hate trade are much more passionate about hating trade than people who like trade are passionate about liking trade. If that’s the case, then this is what we need to change.

Today I’d like to focus on what we as economists and the economically literate more generally can do to help people understand what free trade is and why it is so important. This means two things:

First, of course, we must be clearer about the benefits of free trade. Many economists seem to think that it is simply so obvious that they don’t even bother to explain it, and end up seeming like slogan-chanting ideologues. “Free trade! Free trade! Free trade!”

Above all, we need to talk about how it was primarily through free trade that global extreme poverty is now at the lowest level it has ever been. This benefit needs to be repeated over and over, and anyone who argues for protectionism needs to be confronted with the millions of people they will throw back into poverty. Most people don’t even realize that global poverty is declining, so first of all, they need to be shown that it is.

American ideas are often credited with fighting global poverty, but that’s not so convincing, since most of the improvement in poverty has happened in China (not exactly a paragon of free markets, much less liberal democracy); what really seems to have made the difference is American dollars, spent in free trade. Imports to the US from China have risen from $3.8 billion in 1985 to $483 billion in 2015. Extreme poverty in China fell from 61% of the population in 1990 to 4% in 2015. Coincidence? I think not. Indeed, that $483 billion is just about $1 per day for every man, woman, and child in China—and the UN extreme poverty line is $1.25 per person per day.

We need to be talking about the jobs that are created by trade—if need be, making TV commercials interviewing workers at factories who make products for export. “Most of our customers are in Japan,” they might say. “Without free trade, I’d be out of a job.” Interview business owners saying things like, “Two years ago we opened up sales to China. Now I need to double my workforce just to keep up with demand.” Unlike a lot of other economic policies where the benefits are diffuse and hard to keep track of, free trade is one where you can actually point to specific people and see that they are now better off because they make more selling exports. From there, we just need to point out that imports and exports are two sides of the same transaction—so if you like exports, you’d better have imports.

We need to make it clear that the economic gains from trade are just as real as the losses from transition, even if they may not be as obvious. William Poole put it very well in this article on attitudes toward free trade:

Economists are sometimes charged with insensitivity over job losses, when in fact most of us are extremely sensitive to such losses. What good economics tells us is that saving jobs in one industry does not save jobs in the economy as a whole. We urge people to be as sensitive to the jobs indirectly lost as a consequence of trade restriction as to those lost as a consequence of changing trade patterns.

Second, just as importantly, we must be honest about the costs of free trade. We need to stop eliding the distinction between net aggregate benefits and benefits for everyone everywhere. There are winners and losers, and we need to face up to that.

For example, we need to stop saying thinks like “Free trade will not send jobs to Mexico and China.” No, it absolutely will, and has, and does—and that is part of what it’s for. Because people in Mexico and China are people, and they deserve to have better jobs just as much as we do. Sending jobs to China is not a bug; it’s a feature. China needs jobs particularly badly.

Then comes the next part: “But if our jobs get sent to China, what will we do?” Better jobs, created here by the economic benefits of free trade. No longer will American workers toil in factories assembling parts; instead they will work in brightly-lit offices designing those parts on CAD software.

Of course this raises another problem: What happens to people who were qualified to toil in factories, but aren’t qualified to design parts on CAD software? Well, they’ll need to learn. And we should be paying for that education (though in large part, we are; altogether US federal, state, and local governments spend over $1 trillion a year on education).

And what if they can’t learn, can’t find another job somewhere else? What if they’re just not cut out for the kind of work we need in a 21st century economy? Then here comes my most radical statement of all: Then they shouldn’t have to.

The whole point of expanding economic efficiency—which free trade most certainly does—is to create more stuff. But if you create more stuff, you then have the opportunity to redistribute that stuff, in such a way that no one is harmed by that transition. This is what we have been failing to do in the United States. We need to set up our unemployment and pension systems so that people who lose their jobs due to free trade are not harmed by it, but instead feel like it is an opportunity to change careers or retire. We should have a basic income so that even people who can’t work at all can still live with dignity. This redistribution will not happen automatically; it is a policy choice we must make.

 

In theory there is a way around it, which is often proposed as an alternative to a basic income; it is called a job guarantee. Simply giving everyone free money for some reason makes people uncomfortable (never could quite fathom why; Donald Trump inherits capital income from his father, that’s fine, but we all inherit shared capital income as a nation, that’s a handout?), so instead we give everyone a job, so they can earn their money!

Well, here’s the thing: They won’t actually be earning it—or else it’s not a job guarantee. If you just want an active labor-market program to retrain workers and match them with jobs, that sounds great; Denmark has had great success with such things, and after all #ScandinaviaIsBetter. But no matter how good your program is, some people are going to not have any employable skills, or have disabilities too severe to do any productive work, or simply be too lazy to actually work. And now you’ve got a choice to make: Do you give those people jobs, or not?

If you don’t, it’s not a job guarantee. If you do, they’re not earning it anymore. Either employment is tied to actual productivity, or it isn’t; if you are guaranteed a certain wage no matter what you do, then some people are going to get that wage for doing nothing. As The Economist put it:

However, there are two alternatives: give people money with no strings attached (through a guaranteed basic income, unemployment insurance, disability payments, and so forth), or just make unemployed people survive on whatever miserable scraps they can cobble together.

If it’s really a job guarantee, we would still need to give jobs to people who can’t work or simply won’t. How is this different from a basic income? Well, it isn’t, except you added all these extra layers of bureaucracy so that you could feel like you weren’t just giving a handout. You’ve added additional costs for monitoring and administration, as well as additional opportunities for people to slip through the cracks. Either you are going to leave some people in poverty, or you are going to give money to people who don’t work—so why not give money to people who don’t work?

Another cost we need to be honest about is ecological. In our rush to open free trade, we are often lax in ensuring that this trade will not accelerate environmental degradation and climate change. This is often justified in the name of helping the world’s poorest people; but they will be hurt far more when their homes are leveled by hurricanes than by waiting a few more years to get the trade agreement right. That’s one where Poole actually loses me:

Few Americans favor a world trading system in which U.S. policies on environmental and other conditions could be controlled by foreign governments through their willingness to accept goods exported by the United States.

Really? You think we should be able to force other countries to accept our goods, regardless of whether they consider them ecologically sustainable? You think most Americans think that? It’s easy to frame it as other people imposing on us, but trade restrictions on ecologically harmful goods are actually a very minimal—indeed, almost certainly insufficient—regulation against environmental harm. Oil can still kill a lot of people even if it never crosses borders (or never crosses in liquid form—part of the point is you can’t stop the gaseous form). We desperately need global standards on ecological sustainability, and while we must balance environmental regulations with economic efficiency, currently that balance is tipped way too far against the environment—and millions will die if it remains this way.

This is the kernel of truth in otherwise economically-ignorant environmentalist diatribes like Naomi Klein’s This Changes Everything; free trade in principle doesn’t say anything about being environmentally unsustainable, but free trade in practice has often meant cutting corners and burning coal. Where we currently have diesel-powered container ships built in coal-powered factories and Klein wants no container ships and perhaps even no factories, what we really need are nuclear-powered container ships and solar-powered factories. Klein points out cases where free trade agreements have shut down solar projects that tried to create local jobs—but neither side seems to realize that a good free trade agreement would expand that solar project to create global jobs. Instead of building solar panels in Canada to sell only in Canada, we’d build solar panels in Canada to sell in China and India—and build ten times as many. That is what free trade could be, if we did it right.

Lukewarm support is a lot better than opposition

July 23, JDN 2457593

Depending on your preconceptions, this statement may seem either eminently trivial or offensively wrong: Lukewarm support is a lot better than opposition.

I’ve always been in the “trivial” camp, so it has taken me awhile to really understand where people are coming from when they say things like the following.

From a civil rights activist blogger (“POC” being “person of color” in case you didn’t know):

Many of my POC friends would actually prefer to hang out with an Archie Bunker-type who spits flagrantly offensive opinions, rather than a colorblind liberal whose insidious paternalism, dehumanizing tokenism, and cognitive indoctrination ooze out between superficially progressive words.

From the Daily Kos:

Right-wing racists are much more honest, and thus easier to deal with, than liberal racists.

From a Libertarian blogger:

I can deal with someone opposing me because of my politics. I can deal with someone who attacks me because of my religious beliefs. I can deal with open hostility. I know where I stand with people like that.

They hate me or my actions for (insert reason here). Fine, that is their choice. Let’s move onto the next bit. I’m willing to live and let live if they are.

But I don’t like someone buttering me up because they need my support, only to drop me the first chance they get. I don’t need sweet talk to distract me from the knife at my back. I don’t need someone promising the world just so they can get a boost up.

In each of these cases, people are expressing a preference for dealing with someone who actively opposes them, rather than someone who mostly supports them. That’s really weird.

The basic fact that lukewarm support is better than opposition is basically a mathematical theorem. In a democracy or anything resembling one, if you have the majority of population supporting you, even if they are all lukewarm, you win; if you have the majority of the population opposing you, even if the remaining minority is extremely committed to your cause, you lose.

Yes, okay, it does get slightly more complicated than that, as in most real-world democracies small but committed interest groups actually can pressure policy more than lukewarm majorities (the special interest effect); but even then, you are talking about the choice between no special interests and a special interest actively against you.

There is a valid question of whether it is more worthwhile to get a small, committed coalition, or a large, lukewarm coalition; but at the individual level, it is absolutely undeniable that supporting you is better for you than opposing you, full stop. I mean that in the same sense that the Pythagorean theorem is undeniable; it’s a theorem, it has to be true.

If you had the opportunity to immediately replace every single person who opposes you with someone who supports you but is lukewarm about it, you’d be insane not to take it. Indeed, this is basically how all social change actually happens: Committed supporters persuade committed opponents to become lukewarm supporters, until they get a majority and start winning policy votes.

If this is indeed so obvious and undeniable, why are there so many people… trying to deny it?

I came to realize that there is a deep psychological effect at work here. I could find very little in the literature describing this effect, which I’m going to call heretic effect (though the literature on betrayal aversion, several examples of which are linked in this sentence, is at least somewhat related).

Heretic effect is the deeply-ingrained sense human beings tend to have (as part of the overall tribal paradigm) that one of the worst things you can possibly do is betray your tribe. It is worse than being in an enemy tribe, worse even than murdering someone. The one absolutely inviolable principle is that you must side with your tribe.

This is one of the biggest barriers to police reform, by the way: The Blue Wall of Silence is the result of police officers identifying themselves as a tight-knit tribe and refusing to betray one of their own for anything. I think the best option for convincing police officers to support reform is to reframe violations of police conduct as themselves betrayals—the betrayal is not the IA taking away your badge, the betrayal is you shooting an unarmed man because he was Black.

Heretic effect is a particular form of betrayal aversion, where we treat those who are similar to our tribe but not quite part of it as the very worst sort of people, worse than even our enemies, because at least our enemies are not betrayers. In fact it isn’t really betrayal, but it feels like betrayal.

I call it “heretic effect” because of the way that exclusivist religions (including all the Abrahamaic religions, and especially Christianity and Islam) focus so much of their energy on rooting out “heretics”, people who almost believe the same as you do but not quite. The Spanish Inquisition wasn’t targeted at Buddhists or even Muslims; it was targeted at Christians who slightly disagreed with Catholicism. Why? Because while Buddhists might be the enemy, Protestants were betrayers. You can still see this in the way that Muslim societies treat “apostates”, those who once believed in Islam but don’t anymore. Indeed, the very fact that Christianity and Islam are at each other’s throats, rather than Hinduism and atheism, shows that it’s the people who almost agree with you that really draw your hatred, not the people whose worldview is radically distinct.

This is the effect that makes people dislike lukewarm supporters; like heresy, lukewarm support feels like betrayal. You can clearly hear that in the last quote: “I don’t need sweet talk to distract me from the knife at my back.” Believe it or not, Libertarians, my support for replacing the social welfare state with a basic income, decriminalizing drugs, and dramatically reducing our incarceration rate is not deception. Nor do I think I’ve been particularly secretive about my desire to make taxes more progressive and environmental regulations stronger, the things you absolutely don’t agree with. Agreeing with you on some things but not on other things is not in fact the same thing as lying to you about my beliefs or infiltrating and betraying your tribe.

That said, I do sort of understand why it feels that way. When I agree with you on one thing (decriminalizing cannabis, for instance), it sends you a signal: “This person thinks like me.” You may even subconsciously tag me as a fellow Libertarian. But then I go and disagree with you on something else that’s just as important (strengthening environmental regulations), and it feels to you like I have worn your Libertarian badge only to stab you in the back with my treasonous environmentalism. I thought you were one of us!

Similarly, if you are a social justice activist who knows all the proper lingo and is constantly aware of “checking your privilege”, and I start by saying, yes, racism is real and terrible, and we should definitely be working to fight it, but then I question something about your language and approach, that feels like a betrayal. At least if I’d come in wearing a Trump hat you could have known which side I was really on. (And indeed, I have had people unfriend me or launch into furious rants at me for questioning the orthodoxy in this way. And sure, it’s not as bad as actually being harassed on the street by bigots—a thing that has actually happened to me, by the way—but it’s still bad.)

But if you can resist this deep-seated impulse and really think carefully about what’s happening here, agreeing with you partially clearly is much better than not agreeing with you at all. Indeed, there’s a fairly smooth function there, wherein the more I agree with your goals the more our interests are aligned and the better we should get along. It’s not completely smooth, because certain things are sort of package deals: I wouldn’t want to eliminate the social welfare system without replacing it with a basic income, whereas many Libertarians would. I wouldn’t want to ban fracking unless we had established a strong nuclear infrastructure, but many environmentalists would. But on the whole, more agreement is better than less agreement—and really, even these examples are actually surface-level results of deeper disagreement.

Getting this reaction from social justice activists is particularly frustrating, because I am on your side. Bigotry corrupts our society at a deep level and holds back untold human potential, and I want to do my part to undermine and hopefully one day destroy it. When I say that maybe “privilege” isn’t the best word to use and warn you about not implicitly ascribing moral responsibility across generations, this is not me being a heretic against your tribe; this is a strategic policy critique. If you are writing a letter to the world, I’m telling you to leave out paragraph 2 and correcting your punctuation errors, not crumpling up the paper and throwing it into a fire. I’m doing this because I want you to win, and I think that your current approach isn’t working as well as it should. Maybe I’m wrong about that—maybe paragraph 2 really needs to be there, and you put that semicolon there on purpose—in which case, go ahead and say so. If you argue well enough, you may even convince me; if not, this is the sort of situation where we can respectfully agree to disagree. But please, for the love of all that is good in the world, stop saying that I’m worse than the guys in the KKK hoods. Resist that feeling of betrayal so that we can have a constructive critique of our strategy. Don’t do it for me; do it for the cause.

Should we give up on growth?

JDN 2457572

Recently I read this article published by the Post Carbon Institute, “How to Shrink the Economy without Crashing It”, which has been going around environmentalist circles. (I posted on Facebook that I’d answer it in more detail, so here goes.)

This is the far left view on climate change, which is wrong, but not nearly as wrong as even the “mainstream” right-wing view that climate change is not a serious problem and we should continue with business as usual. Most of the Republicans who ran for President this year didn’t believe in using government action to fight climate change, and Donald Trump doesn’t even believe it exists.
This core message of the article is clearly correct:

We know this because Global Footprint Network, which methodically tracks the relevant data, informs us that humanity is now using 1.5 Earths’ worth of resources.

We can temporarily use resources faster than Earth regenerates them only by borrowing from the future productivity of the planet, leaving less for our descendants. But we cannot do this for long.

To be clear, “using 1.5 Earths” is not as bad as it sounds; spending is allow to exceed income at times, as long as you have reason to think that future income will exceed future spending, and this is true not just of money but also of natural resources. You can in fact “borrow from the future”, provided you do actually have a plan to pay it back. And indeed there has been some theoretical work by environmental economists suggesting that we are rightly still in the phase of net ecological dissaving, and won’t enter the phase of net ecological saving until the mid-21st century when our technology has made us two or three times as productive. This optimal path is defined by a “weak sustainability” condition where total real wealth never falls over time, so any natural wealth depleted is replaced by at least as much artificial wealth.

Of course some things can’t be paid back; while forests depleted can be replanted, if you drive species to extinction, only very advanced technology could restore them. And we are driving thousands of species to extinction every single year. Even if we should be optimally dissaving, we are almost certainly depleting natural resources too fast, and depleting natural resources that will be difficult if not impossible to later restore. In that sense, the Post Carbon Institute is right: We must change course toward ecological sustainability.

Unfortunately, their specific ideas of how to do so leave much to be desired. Beyond ecological sustainability, they really argue for two propositions: one is radical but worth discussing, but the other is totally absurd.

The absurd claim is that we should somehow force the world to de-urbanize and regress into living in small farming villages. To show this is a bananaman and not a strawman, I quote:

8. Re-localize. One of the difficulties in the transition to renewable energy is that liquid fuels are hard to substitute. Oil drives nearly all transportation currently, and it is highly unlikely that alternative fuels will enable anything like current levels of mobility (electric airliners and cargo ships are non-starters; massive production of biofuels is a mere fantasy). That means communities will be obtaining fewer provisions from far-off places. Of course trade will continue in some form: even hunter-gatherers trade. Re-localization will merely reverse the recent globalizing trade trend until most necessities are once again produced close by, so that we—like our ancestors only a century ago—are once again acquainted with the people who make our shoes and grow our food.

9. Re-ruralize. Urbanization was the dominant demographic trend of the 20th century, but it cannot be sustained. Indeed, without cheap transport and abundant energy, megacities will become increasingly dysfunctional. Meanwhile, we’ll need lots more farmers. Solution: dedicate more societal resources to towns and villages, make land available to young farmers, and work to revitalize rural culture.

First of all: Are electric cargo ships non-starters? The Ford-class aircraft carrier is electric, specifically nuclear. Nuclear-powered cargo ships would raise a number of issues in terms of practicality, safety, and regulation, but they aren’t fundamentally infeasible. Massive efficient production of biofuels is a fantasy as long as the energy to do it is provided by coal power, but not if it’s provided by nuclear. Perhaps this author’s concept of “infeasible” really just means “infeasible if I can’t get over my irrational fear of nuclear power”. Even electric airliners are not necessarily out of the question; NASA has been experimenting with electric aircraft.

The most charitable reading I can give of this (in my terminology of argument “men”, I’m trying to make a banana out of iron), is as promoting slightly deurbanizing and going back to more like say the 1950s United States, with 64% of people in cities instead of 80% today. Even then this makes less than no sense, as higher urbanization is associated with lower per-capita ecological impact, which frankly shouldn’t even be surprising because cities have such huge economies of scale. Instead of everyone needing a car to get around in the suburbs, we can all share a subway system in the city. If that subway system is powered by a grid of nuclear, solar, and wind power, it could produce essentially zero carbon emissions—which is absolutely impossible for rural or suburban transportation. Urbanization is also associated with slower population growth (or even population decline), and indeed the reason population growth is declining is that rising standard of living and greater urbanization have reduced birth rates and will continue to do so as poor countries reach higher levels of development. Far from being a solution to ecological unsustainability, deurbanization would make it worse.

And that’s not even getting into the fact that you would have to force urban white-collar workers to become farmers, because if we wanted to be farmers we already would be (the converse is not as true), and now you’re actually talking about some kind of massive forced labor-shift policy like the Great Leap Forward. Normally I’m annoyed when people accuse environmentalists of being totalitarian communists, but in this case, I think the accusation might be onto something.

Moving on, the radical but not absurd claim is that we must turn away from economic growth and even turn toward economic shrinkage:

One way or another, the economy (and here we are talking mostly about the economies of industrial nations) must shrink until it subsists on what Earth can provide long-term.

[…]

If nothing is done deliberately to reverse growth or pre-adapt to inevitable economic stagnation and contraction, the likely result will be an episodic, protracted, and chaotic process of collapse continuing for many decades or perhaps centuries, with innumerable human and non-human casualties.

I still don’t think this is right, but I understand where it’s coming from, and like I said it’s worth talking about.

The biggest mistake here lies in assuming that GDP is directly correlated to natural resource depletion, so that the only way to reduce natural resource depletion is to reduce GDP. This is not even remotely true; indeed, countries vary almost as much in their GDP-per-carbon-emission ratio as they do in their per-capita GDP. As usual, #ScandinaviaIsBetter; Norway and Sweden produce about $8,000 in GDP per ton of carbon, while the US produces only about $2,000 per ton. Both poor and rich countries can be found among both the inefficient and the efficient. Saudi Arabia is very rich and produces about $900 per ton, while Liberia is exceedingly poor and produces about $800 per ton. I already mentioned how Norway produces $8,000 per ton, and they are as rich as Saudi Arabia. Yet above them is Mali, which produces almost $11,000 per ton, and is as poor as Liberia. Other notable facts: France is head and shoulders above the UK and Germany at almost $6000 per ton instead of $4300 and $3600 respectively—because France runs almost entirely on nuclear power.

So the real conclusion to draw from this is not that we need to shrink GDP, but that we need to make GDP more like how they do it in Norway or at least how they do it in France, rather than how we do in the US, and definitely not how they do it in Saudi Arabia. Total world emissions are currently about 36 billion tons per year, producing about $108 trillion in GDP, averaging about $3,000 of GDP per ton of carbon emissions. If we could raise the entire world to the ecological efficiency of Norway, we could double world GDP and still be producing less CO2 than we currently are. Turning the entire planet into a bunch of Norways would indeed raise CO2 output, by about a factor of 2; but it would raise standard of living by a factor of 5, and indeed bring about a utopian future with neither war nor hunger. Compare this to the prospect of cutting world GDP in half, but producing it as inefficiently as in Saudi Arabia: This would actually increase global CO2 emissions, almost as much as turning every country into Norway.

But ultimately we will in fact need to slow down or even end economic growth. I ran a little model for you, which shows a reasonable trajectory for global economic growth.

This graph shows the growth rate in productivity slowly declining, along with a much more rapidly declining GDP growth:

Solow_growth

This graph shows the growth trajectory for total real capital and GDP:

Solow_capital

And finally, this is the long-run trend for GDP graphed on a log scale:

Solow_logGDP

The units are arbitrary, though it’s not unreasonable to imagine them as being years and hundreds of dollars in per-capita GDP. If that is indeed what you imagine them to be, my model shows us the Star Trek future: In about 300 years, we rise from a per-capita GDP of $10,000 to one of $165,000—from a world much like today to a world where everyone is a millionaire.

Notice that the growth rate slows down a great deal fairly quickly; by the end of 100 years (i.e., the end of the 21st century), growth has slowed from its peak over 10% to just over 2% per year. By the end of the 300-year period, the growth rate is a crawl of only 0.1%.

Of course this model is very simplistic, but I chose it for a very specific reason: This is not a radical left-wing environmentalist model involving “limits to growth” or “degrowth”. This is the Solow-Swan model, the paradigm example of neoclassical models of economic growth. It is sometimes in fact called simply “the neoclassical growth model”, because it is that influential. I made one very small change from the usual form, which was to assume that the rate of productivity growth would decline exponentially over time. Since productivity growth is exogenous to the model, this is a very simple change to make; it amounts to saying that productivity-enhancing technology is subject to diminishing returns, which fits recent data fairly well but could be totally wrong if something like artificial intelligence or neural enhancement ever takes off.

I chose this because many environmentalists seem to think that economists have this delusional belief that we can maintain a rate of economic growth equal to today indefinitely. David Attenborough famously said “Anyone who believes in indefinite growth in anything physical, on a physically finite planet, is either mad – or an economist.”

Another physicist argued that if we increase energy consumption 2.3% per year for 400 years, we’d literally boil the Earth. Yes, we would, and no economist I know of believes that this is what will happen. Economic growth doesn’t require energy growth, and we do not think growth can or should continue indefinitely—we just think it can and should continue a little while longer. We don’t think that a world standard of living 1000 times as good as Norway is going to happen; we think that a world standard of living equal to Norway is worth fighting for.

Indeed, we are often the ones trying to explain to leaders that they need to adapt to slower growth rates—this is particularly a problem in China, where nationalism and groupthink seems to have convinced many people in China that 7% annual growth is the result of some brilliant unique feature of the great Chinese system, when it is in fact simply the expected high growth rate for an economy that is very poor and still catching up by establishing a capital base. (It’s not so much what they are doing right now, as what they were doing wrong before. Just as you feel a lot better when you stop hitting yourself in the head, countries tend to grow quite fast after they transition out of horrifically terrible economic policy—and it doesn’t get much more terrible than Mao.) Even a lot of the IMF projections are now believed to be too optimistic, because they didn’t account for how China was fudging the numbers and rapidly depleting natural resources.

Some of the specific policies recommended in the article are reasonable, while others go to far.

1. Energy: cap, reduce, and ration it. Energy is what makes the economy go, and expanded energy consumption is what makes it grow. Climate scientists advocate capping and reducing carbon emissions to prevent planetary disaster, and cutting carbon emissions inevitably entails reducing energy from fossil fuels. However, if we aim to shrink the size of the economy, we should restrain not just fossil energy, but all energy consumption. The fairest way to do that would probably be with tradable energy quotas.

I strongly support cap-and-trade on fossil fuels, but I can’t support it on energy in general, unless we get so advanced that we’re seriously concerned about significantly altering the entropy of the universe. Solar power does not have negative externalities, and therefore should not be taxed or capped.

The shift to renewable energy sources is a no-brainer, and I know of no ecologist and few economists who would disagree.

This one is rich, coming from someone who goes on to argue for nonsensical deurbanization:

However, this is a complicated process. It will not be possible merely to unplug coal power plants, plug in solar panels, and continue with business as usual: we have built our immense modern industrial infrastructure of cities, suburbs, highways, airports, and factories to take advantage of the unique qualities and characteristics of fossil fuels.

How will we make our industrial infrastructure run off a solar grid? Urbanization. When everything is in one place, you can use public transportation and plug everything into the grid. We could replace the interstate highway system with a network of maglev lines, provided that almost everyone lived in major cities that were along those lines. We can’t do that if people move out of cities and go back to being farmers.

Here’s another weird one:

Without continued economic growth, the market economy probably can’t function long. This suggests we should run the transformational process in reverse by decommodifying land, labor, and money.

“Decommodifying money”? That’s like skinning leather or dehydrating water. The whole point of money is that it is a maximally fungible commodity. I support the idea of a land tax to provide a basic income, which could go a long way to decommodifying land and labor; but you can’t decommodify money.

The next one starts off sounding ridiculous, but then gets more reasonable:

4. Get rid of debt. Decommodifying money means letting it revert to its function as an inert medium of exchange and store of value, and reducing or eliminating the expectation that money should reproduce more of itself. This ultimately means doing away with interest and the trading or manipulation of currencies. Make investing a community-mediated process of directing capital toward projects that are of unquestioned collective benefit. The first step: cancel existing debt. Then ban derivatives, and tax and tightly regulate the buying and selling of financial instruments of all kinds.

No, we’re not going to get rid of debt. But should we regulate it more? Absolutely. A ban on derivatives is strong, but shouldn’t be out of the question; it’s not clear that even the most useful derivatives (like interest rate swaps and stock options) bring more benefit than they cause harm.

The next proposal, to reform our monetary system so that it is no longer based on debt, is one I broadly agree with, though you need to be clear about how you plan to do that. Positive Money’s plan to make central banks democratically accountable, establish full-reserve banking, and print money without trying to hide it in arcane accounting mechanisms sounds pretty good to me. Going back to the gold standard or something would be a terrible idea. The article links to a couple of “alternative money theorists”, but doesn’t explain further.

Sooner or later, we absolutely will need to restructure our macroeconomic policy so that 4% or even 2% real growth is no longer the expectation in First World countries. We will need to ensure that constant growth isn’t necessary to maintain stability and full employment.

But I believe we can do that, and in any case we do not want to stop global growth just yet—far from it. We are now on the verge of ending world hunger, and if we manage to do it, it will be from economic growth above all else.