Category: Environmental Issues

Transit-Oriented Development and Rail Capacity

Hayden Clarkin, inspired by the ongoing YIMBYTown conference in New Haven, asks me about rail capacity on transit-oriented development, in a way that reminds me of Donald Shoup’s critique of trip generation tables from the 2000s, before he became an urbanist superstar. The prompt was,

Is it possible to measure or estimate the train capacity of a transit line? Ie: How do I find the capacity of the New Haven line based on daily train trips, etc? Trying to see how much housing can be built on existing rail lines without the need for adding more trains

To be clear, Hayden was not talking about the capacity of the line but about that of trains. So adding peak service beyond what exists and is programmed (with projects like Penn Station Access) is not part of the prompt. The answer is that,

  1. There isn’t really a single number (this is a trip generation question).
  2. Moreover, under the assumption of status quo service on commuter rail, development near stations would not be transit-oriented.

Trip generation refers to the formula connecting the expected car trips generated by new development. It, and its sibling parking generation, is used in transportation planning and zoning throughout the United States, to limit development based on what existing and planned highway capacity can carry. Shoup’s paper explains how the trip and parking generation formulas are fictional, fitting a linear curve between the size of new development and the induced number of car trips and parked cars out of extremely low correlations, sometimes with an R^2 of less than 0.1, in one case with a negative correlation between trip generation and development size.

I encourage urbanists and transportation advocates and analysts to read Shoup’s original paper. It’s this insight that led him to examine parking requirements in zoning codes more carefully, leading to his book The High Cost of Free Parking and then many years of advocacy for looser parking requirements.

I bring all of this up because Hayden is essentially asking a trip generation question but on trains, and the answer there cannot be any more definitive than for cars. It’s not really possible to control what proportion of residents of new housing in a suburb near a New York commuter rail stop will be taking the train. Under current commuter rail service, we should expect the overwhelming majority of new residents who work in Manhattan to take the train, and the overwhelming majority of new residents who work anywhere else to drive (essentially the only exception is short trips on commuter rail, for example people taking the train from suburbs past Stamford to Stamford; those are free from the point of view of train capacity). This is comparable mode choice to that in the trip and parking generation tables, driven by an assumption of no alternative to driving, which is correct in nearly all of the United States. However, figuring out the proportion of new residents who would be commuting to Manhattan and thus taking the train is a hard exercise, for all of the following reasons:

  • The great majority of suburbanites do not work in the city. For example, in the Western Connecticut and Greater Bridgeport Planning Regions, more or less coterminous with Fairfield County, 59.5% of residents work within one of these two regions, and only 7.4% work in Manhattan as of 2022 (and far fewer work in the Outer Boroughs – the highest number, in Queens, is 0.7%). This means that every new housing unit in the suburbs, even if it is guaranteed the occupant works in Manhattan, generates demand for more destinations within the suburb, such as retail and schools.
  • The decision of a city commuter to move to the suburbs is not driven by high city housing prices. The suburbs of New York are collectively more expensive to live in than the city, and usually the ones with good commuter rail service are more expensive than other suburbs. Rather, the decision is driven by preference for the suburbs. This means that it’s hard to control where the occupant of new suburban housing will work purely through TOD design characteristics such as proximity to the station, streets with sidewalks, or multifamily housing.
  • Among public transportation users, what time of day they go to work isn’t controllable. Most likely they’d commute at rush hour, because commuter rail is marginally usable off-peak, but it’s not guaranteed, and just figuring the proportion of new users who’d be working in Manhattan at rush hour is another complication.

All of the above factors also conspire to ensure that, under the status quo commuter rail service assumption, TOD in the suburbs is impossible except perhaps ones adjacent to the city. In a suburb like Westport, everyone is rich enough to afford one car per adult, and adding more housing near the station won’t lower prices by enough to change that. The quality of service for any trip other than a rush hour trip to Manhattan ranges from low to unusable, and so the new residents would be driving everywhere except their Manhattan job, even if they got housing in a multifamily building within walking distance of the train station.

This is a frustrating answer, so perhaps it’s better to ask what could be modified to ensure that TOD in the suburbs of New York became possible. For this, I believe two changes are required:

  • Improvements in commuter rail scheduling to appeal to the growing majority of off-peak commuters as well as to non-commute trips. I’ve written about this repeatedly as part of ETA but also the high-speed rail project for the Transit Costs Project.
  • Town center development near the train station to colocate local service functions there, including retail, a doctor’s office and similar services, a library, and a school, with the residential TOD located behind these functions.

The point of commercial and local service TOD is to concentrate destinations near the train station. This permits trip chaining by transit, where today it is only viable by car in those suburbs. This also encourages running more connecting bus service to the train station, initially on the strength of low-income retail workers who can’t afford a car, but then as bus-rail connections improve also for bus-rail commuters. The average income of a bus rider would remain well below that of a driver, but better service with timed connections to the train would mean the ridership would comprise a broader section of the working class rather than just the poor. Similarly, people who don’t drive on ideological or personal disability grounds could live in a certain degree of comfort in the residential TOD and walk, and this would improve service quality so that others who can drive but sometimes choose not to could live a similar lifestyle.

But even in this scenario of stronger TOD, it’s not really possible to control train capacity through zoning. We should expect this scenario to lead to much higher ridership without straining capacity, since capacity is determined by the peak and the above outline leads to a community with much higher off-peak rail usage for work and non-work trips, with a much lower share of its ridership occurring at rush hour (New York commuter rail is 67-69%, the SNCF part of the RER and Transilien are about 46%, due to frequency and TOD quality). But we still have no good way of controlling the modal choice, which is driven by personal decisions depending on local conditions of the suburb, and by office growth in the city versus in the suburbs.

Meme Weeding: Embodied Carbon

The greenhouse gases emitted by the production of concrete, called embodied carbon, are occasionally used as a green-NIMBY argument against building new things. A Berlin Green spokesperson coauthored a study opposing U-Bahn construction on the grounds that the concrete used in construction would raise emissions. More recently, I’ve seen American opponents of transit-oriented development in Manhattan, of all places, talk about the high embodied carbon of new high-rise buildings. Katja Diehl calls for a moratorium on new buildings on anti-concrete grounds, and a petition for the EU to shift regulations to be against new buildings and in favor of reuse on embodied carbon grounds got written up favorably by Kate Wagner in the Nation. Against all of this, I’ve found some numbers on the actual emissions involved in concrete production for new buildings, and they are so low as to be insignificant, 1.5 orders of magnitude less than transportation emissions. A decarbonization strategy should largely ignore embodied carbon concerns and embrace pro-growth sentiments: big buildings, big subway systems, big cities.

What is embodied carbon?

Embodied (sometimes called embedded) carbon is the carbon content emitted by the production of materials. The production of concrete emits greenhouses gases, mainly through two mechanisms: the chemical process used to produce cement emits CO2 by itself, and the energy used for production adds to the emissions of the electric grid.

What are the embodied carbon emissions of new buildings?

The embodied carbon content of concrete depends heavily on the local electricity grid as well as on the required strength of the material, with stronger requirements leading to higher emissions. The Climate Group commissioned a report on this in the British context, finding a wide range, but the average is around 250 kg of CO2-equivalent per m^3 of concrete, the 75th percentile is about 300, and the upper bound is 450. This is a cradle-to-gate figure, taking into account the existing conditions of the carbon intensivity of where concrete is produced and of the logistics system for getting it to the construction site. This is already with some reductions from a previous baseline (EC100; the UK average is around EC60), and further reductions are possible, through decarbonizing the logistics and production; the goal of the report is not to bury the concept of embodied carbon as I do but to propose ways to reduce construction industry emissions.

The question is now how to convert cubic meters of concrete into square meters of built-up area. I have not seen European figures for this, but I did find a 2012 report by the Building and Construction Authority. In Singapore, the sustainability index used is the concrete usage index (CUI), measured in meters (cubic meters per square meter). The example projects given in the study, all around 15 years old, have a CUI of 0.4-0.5 m, and it was pointed out to me on social media that in Toronto the average is 0.55 m.

250 kg/m^3 times 0.4 m equals 0.1 t-CO2 per m^2 of built-up area. A 100 m^2 apartment thus has an embodied carbon content of around 10 t-CO2. This is relative to a baseline in which there is already some concern for reducing construction emissions, both the CUI and the carbon content of concrete per m^3, but this is largely without techniques like mass timber or infra-lightweight concrete (ILC). In Singapore the techniques highlighted in the BCA report are fully compatible with the city’s high-rise character, and the example building with gold but not platinum certification has 25 stories.

Should we worry about construction emissions?

No.

An aggressively YIMBY construction schedule, say with 10 dwellings built annually per 1,000 people, say averaging 100 m^2, emits around 0.1 t/capita annually: 0.1 t/m^2 * 100 m^2/unit * 0.01 unit/capita. All figures have ranges (and if anything, 100 is high for the places that build this much urban infill housing), but factor-of-1.5 ranges don’t erase an order of magnitude analysis. The emissions produced by construction, even if it were raised to some of the highest per capita rates found in the developed world – in fact higher rates than any national average I know of – would be about two orders of magnitude lower than present-day first-world emissions. They’d be 1.5 orders of magnitude lower than transportation emissions; in Germany, transport is 22% of national emissions and rising, as all other sources are in decline whereas transport is flat.

There’s a lot of confusion about this because some studies talk about buildings in general providing a high share of emissions. The Bloomberg-era PlaNYC spoke of buildings as the top source of emissions in New York, and likewise the Nation cites WeForum saying buildings are 37% of global emissions, citing a UN report that includes buildings’ operating emissions (its topline figure is 10 Gt in operating emissions, which is 27% of global emissions in 2022). But the construction emissions are insignificantly low. This means that aggressive replacement of older buildings by newer, more energy-efficient ones is an unmixed blessing, exactly the opposite of the conclusion of the green movement.

Instead of worrying about a source of emissions measured per capita in the tens of kilograms per year rather than in the tons, environmental advocates need to prioritize the most important source of greenhouse gases. The largest in developed countries is transportation, with electricity production usually coming second, always falling over the years while transport remains flat. In cold countries, heating is a significant source of emissions as well, to be reduced through building large, energy-efficient apartment buildings and through heat pump installation.

Regulations on new construction’s embodied carbon are likely a net negative for the environment. The most significant social policy concerning housing as far as environmental impact is concerned is to encourage people to live in urban apartment buildings near train stations. Any regulation that makes this harder – for example, making demolitions of small buildings to make room for big ones harder, or demanding that new buildings meet embodied carbon standards – makes this goal harder. This can be understandable occasionally if the goal of the regulation is not environmental, for example labor regulations for construction workers. It is not understandable if the goal is environmental, as the concern over embodied carbon is. People are entitled to their opinion that small is beautiful as a matter of aesthetic judgment, but they are not entitled to alternative facts that small is environmentally friendly.

Large Cars are a Positional Good

Americans have, over the last generation, gotten ever larger cars, to the point that the market is dominated by crossovers, pickup trucks, and SUVs and barely has sedans. Europe is not far behind, with the sedan market having collapsed and half of new sales comprising SUVs. Considerable resources are spent on these larger cars, which are more expensive to purchase, maintain, and refuel. The benefits at this point, however, are rather positional. The benefit of larger cars at this point is not about the comfort or performance of the car, but about being larger than other road users. Streets for All’s Michael Schneider described it as an arms race; this arms race that wastes resources and produces pollution and greenhouse gas emissions, without benefits even to individuals writ large, precisely the kind of problem that government regulation can solve.

The benefits of larger cars

The usual benefit drivers cite for why they want a larger car is comfort. The increase in car size from (say) the Fiat 500 or the Beetle or the 1970s Civic to modern midsize cars like the Accord and Camry has led to obvious improvements in comfort: four doors rather than two, ample front and rear passenger legroom, more trunk space.

And beyond this point, the relationship between car size and comfort saturates. Luxury sedans are still larger than midsize ones, but not by much; where the 500 had a curb weight of about 500 kg, the modern Accord is 1.4 t and the Camry is 1.6 t, barely less than a C-Class at 1.7 t and not much less than a 2.1 t 7 Series. A family car does not need to be larger than this, and when I talk to people about their vehicle purchases, at least the ones who tell me they’re getting SUVs do not cite comfort, not in the 2010s-20s.

The main selling point of luxury cars is performance. It’s this high-performance segment that Tesla competes with – electric cars have better performance specs, and where the older automakers tried to base their electric car offerings on preexisting platforms (like the Leaf, based on the Tiida), Tesla instead started by building high-performance luxury cars and expanded from there. But here there is no benefit to size – the Model 3 is around 1.7 t curb weight, and that includes batteries, which together weigh nearly half a ton.

Larger cars can also haul more goods, but the SUVs and pickups are expressly designed not to do that. The F-150’s bed has decreased with every new generation of the car; the Kei truck, specialized to have a large bed relative to the rest of the car, looks so weird to Americans that Massachusetts at one point banned it for being unsafe, while Americans on social media mocked the users as trying to prove an environmental point. The minivan, specialized to carry seven to eight passengers, has been unfashionable for at least a generation, losing out to the similarly large but lower-capacity SUV.

Instead, what I do hear from people telling me why they want a big car is purely positional: “I get to see over the other cars,” or alternatively “I can’t be the shortest car on the road because then I can’t see anything.” People are also recorded modifying their cars to be taller for the same reasons. The visibility in question does not improve if all cars get bigger; only the relative size matters. In the case of car accidents, this is even worse: in a collision between two cars the larger one is safer for the occupants, but making all the cars larger doesn’t improve traffic safety, and makes it much worse for pedestrians, and there’s some evidence of risk compensation by drivers of larger cars increasing the overall number of crashes.

The discourse on social benefits tends to exclude individual ones; thus, it’s easy to say that something that provides tangible individual benefits (such as larger dwellings) does not provide social ones. But this is something different. A purely private good does not provide positive externalities or improve the usual indicators that are usually the realm of public policy, like public health, but it improves the living standards of the owner, without negative externalities. But here, the benefit of the SUV or pickup truck to the user is purely the arms race on the road; the improvement in the quality of life of the owner is entirely about externalizing a fixed or even rising risk of car crashes to other road users. There isn’t even a social benefit here in the sense of the sum total of private individual benefits.

The costs of larger cars

While larger cars do not improve societal well-being on average, they have high individual and social costs.

The social costs are easier to explain: those cars emit much more pollution and greenhouse gases. The Camry has a fuel economy of maybe 37 miles per gallon (6.35 l/100 km) in the US; the F-150 gets less than half that, around 17.5 mpg (13.4 l/100 km). The fuel consumption ratio, 2.1, is somehow larger than the mass ratio – the F-150 doesn’t weigh 3.4 t but rather not much more than 2 t depending on model. Air pollution emissions are, for modern cars with modern petrol engines, proportional to greenhouse gas emissions; a car with twice the fuel consumption is going to also emit twice the particulate matter.

Then there is the danger of crashes. The United States has seen an increase in traffic fatalities lately, especially for pedestrians. The pedestrian fatality rate, in turn, comes from the form of pickups and larger SUVs: they have larger hoods, which hit pedestrians in the chest or (for children) the head rather than in the legs, and which also reduce visibility. Here it’s not an issue of mass but one of hood shape, but these come from the same fundemantal issue of an arms race to be larger and taller than the other cars, to the exclusion of spending on personal comfort.

Those social costs are not the tradeoff of some individual benefit. There is a benefit to the driver of the larger car, but there is no benefit to the driver of the average car on a road with larger cars. Instead, the driver of said average car incurs significant individual costs, coming from the need to buy, maintain, and refuel a larger machine. The low fuel economy costs the drivers money; most of the costs are external, but not all. The purchase price of a larger car is larger, because it is a larger piece of machinery, requiring more workers and more capital to put together; Edmunds’ price range for the F-150 is 50-100% higher than that for the Accord or Camry. Consumers routinely spend more money for better products, but here the product is not better except positionally.

The way forward

Government regulations to curb the arms race can directly limit or tax the size of cars, or instead go after their negative externalities. The latter should be preferred; in particular, a tax on car size would create a situation in which people can pay for a road that is safer for them and more dangerous for others, which is likely to lead to both much more aggressive driving by the largest cars on the road and to populist demands for large cars for everyone.

Specific taxes on large cars may still be appropriate in specific circumstances, like parking; Paris charges SUVs more for parking, justified by the fact that these vehicles don’t fit in the usual street parking spots, which are designed for the typical European car and not for the largest ones.

But outside the issue of parking, it’s better to be tighter about regulations and taxes on pollution, and about accidents. In the United States, it’s necessary to get rid of the system in which cars are perennially underinsured, with most states requiring liability coverage of $50,000 (Cid’s car accident, which was medium-term disabling but not fatal, incurred around $1 million in bills, and the insurance value of human life in the United States is $7.5 million). On both sides of the Atlantic, it’s necessary to tax or regulate pollution more seriously; the EU is ramping up fines on automakers that produce excessively polluting vehicles, but Robert Habeck, who is rather rigid on issues like nuclear power and the Autobahn speed limit, wants to suspend those fines since German automakers lag in electric cars.

On the matter of safety, it’s best to require cars to meet high standards of visibility and pedestrian safety in crashes, measured for example by survival rates at typical city speeds like 30 and 50 km/h. A car that fails these standards should not be on the road, just as cars are tested for occupant safety. If it means that the high, deep hood characteristic of the pickup truck no longer meets regulations, then fine; safety regulators should not compromise just because some antisocial drivers are acculturated to playing Carmageddon on real roads.

The key here is that regulations on emissions and personal injury liability suppress investment in larger cars, and that is good. There are other forms of capital investment in the economy competing for funding, which are not purely positional, for example housing, where German investment has been lagging due to high interest rates. Externalities are a real market failure and sometimes they get to the point that the product is, at scale, a net negative for society.

Quick Note: High-Speed Rail and Decarbonization

I keep seeing European advocates for decarbonizing transportation downplay the importance of big infrastructure, especially high-speed rail. To that end, I’d like to proffer one argument for why high-speed rail decarbonizes transportation even when it induces new trips. Namely: induced leisure trips come at the expense of higher-carbon travel to other destinations. In the 2010s discussion on High Speed 2, for example, induced trips were counted as raising greenhouse gas emissions (while having economic benefits elsewhere), and with this understanding I think that that is wrong. This becomes especially important with the growing focus on flight shaming in Europe. A 1,000 km high-speed rail link doesn’t just compete with flying on the same corridor, but also with flying to a different destination, which may be much farther away, and thus its effect on decarbonizing transport is much larger than a model of corridor-scale competition with cars and planes predicts.

Aviation emissions

A common argument for high-speed rail in the 2000s was that it would displace on-corridor flights, reducing greenhouse gas emissions. In the American version, this argument awkwardly coexisted with a separate argument for high-speed rail, namely that it would decongest airports and allow more flight slots to faraway destinations. In the 2010s and in this decade, this contradictory thinking fell away – the United States hasn’t built anything, China builds for non-environmentalist reasons, Europe gave up on cross-border rail construction and its activists became more interested in trams-and-bikes urbanism. This is also reflected in research: for all of the hype about high-speed rail as a substitute for aviation, researchers like Giulio Mattioli point out that aviation emissions are dominated by long-distance flights, with <500 km flights comprising only 5% of aviation fuel burn and >4,000 km ones comprising 39%. Activist response to policies like France’s ban on flights competing with <2.5 hour TGVs has been to mock it as the gimmick that it is.

For this and other reasons, on-corridor competition with air travel is no longer considered an important issue. This is now being taken in the direction of arguing against 300 km/h lines; the thinking is that high speed is only really needed to compete with flights, whereas competing with cars requires something else. But that argument misses the importance of off-corridor competition. Passengers don’t just choose what mode to take on a fixed corridor; they also choose where to travel, and transport options matter to that choice.

The limits of ridership models

Ridership models tend to be local. SNCF uses a gravity model, in which the ridership between a pair of cities with populations P_A, P_B, of distance d, is said to be proportional to about P_a^{0.8}P_b^{0.8}/d^2. I’ve used the same in my modeling, which predicts Tokyo-to-province ridership rather well but then severely underpredicts Taiwanese ridership.

The issue is that the model is local: if I live in Berlin and want to go to Munich, the model looks only at what’s between Berlin and Munich, and doesn’t consider that I can go to other cities instead if they’re more convenient to get to. One consequence of this is that the model probably overpredicts ridership in larger milieus than in smaller ones for this reason (the Tokyo resident can go to Osaka but also to Tohoku, etc.). But an equal consequence is that off-corridor competition is global.

The limits of leisure travel

Leisure travel is discretionary, and limited by vacation time. Building new high-speed lines does not mean that the country is offering workers more vacation days. The upshot is that every new line competes off-corridor with other lines, but also with other modes. A tightly integrated national high-speed rail system offers domestic tourism by rail, competing not just with flying on longer corridors like Berlin-Cologne, where the trains take four hours and are unreliable, but also with flying to places that the train doesn’t get to.

This has implications to a Europe-wide system as well. Right now, flights from Northern Europe to Southern Europe are on corridors where rail travel is only viable if you are an environmental martyr, really like 14-hour train trips, or ideally both. High-speed rail would by itself not compete on most of these corridors – those Spanish coastal cities are too far from Northern Europe for a mode other than flying, for one. But it would offer reasonable service to other places in Southern Europe with warm climate. Speeding up the Paris-Nice TGV means Parisians would choose to travel to Nice more and to islands less. Building high-speed rail approaches connecting to the base tunnels across the Alps means Germans, especially Southern Germans, could just go to large Italian cities instead of flying to islands or to Turkey. Even business travel may be affected, through replacement of flights to other continents.

Militarized and Other New Capital Cities

The news of the ongoing construction of Nusantara, Indonesia’s new capital in Borneo to replace Jakarta, got me thinking about other moves by various countries to create new capitals from scratch, to avoid having to deal with the urbanity of the existing capital. On this issue, Nusantara joins Brasilia, Islamabad, (at the subnational level) Chandigarh, and, most ominously, Naypyidaw and Egypt’s New Administrative Capital (NAC). The last two, unlike Nusantara, are built for explicitly military purposes, with the military considering the people to be its main adversary rather than any external enemy. Such capitals always waste money that could be spent on improving literally anything else – health, education, transportation, water, electricity, business climate, anti-poverty grants. In the less militarized cases, like Brasilia, these are just waste; in the more militarized cases, these showcase that the state is run by parasites.

Non-militarized cases

The move to Nusantara is being justified on the grounds that Jakarta is sinking. In truth, it’s better to view this as a continuation of the Transmigrasi program that the state has engaged in for decades. The zeitgeist was one of concerns about overpopulation leading to either forced sterilization of the poor or a program of settlement by the core population in peripheral regions; in Indonesia, this took the form of encouraging Javans to settle elsewhere in the country, where in practice they formed an overclass and sidelined the preexisting population. Nusantara, in a mostly undeveloped part of Borneo, needs to be viewed within this program, rather than as a tragic response to climate change.

Brasilia, similarly, was built on developmentalist grounds: the Brazilian elite wanted to develop the interior of the country, viewing the rainforest and savanna as low-value land to be mined and farmed. As this process predates the military dictatorship (1964-85; Brasilia was founded 1960), this is not really a matter of militarization. Rather, it’s better viewed as developmental failure – the resources invested in the new city could have gone to more productive uses, and the value of that land for farming and mining turned out not to be much.

The environmental impacts of the program of developing the interior were wholly negative. In Brazil, half of the country’s greenhouse gas emissions are land use changes and another quarter are from the agriculture sector, leading Brazil to emit 10.7 t/capita in greenhouse gases. In Germany, the figure is 8.1 t/capita, with a large industrial sector and an infamously still substantial coal sector, and on these lower emissions, Germany produces close to four times Brazil’s GDP per capita. The environmental impact of Nusantara is likely to be the same in direction as Brazil’s program, and to the extent it’s likely to be smaller in magnitude, it’s because it’s a smaller endeavor than Brazil’s entire program of developing the interior, in which Brasilia was just one component.

Militarized cases

The worst are not Brasilia, or likely Nusantara, but rather Naypyidaw and the NAC. I’ve been asked to provide some resources on social media, going over what’s involved in both projects.

Naypyidaw

The military junta that ran Myanmar between 1962 and 2011 (with significant tightening in 1988) and has run it since 2021, and exercised significant power between 2011 and 2011, built the new capital, officially since 2005, unofficially since a few years earlier, at a remote location 320 kilometers from Yangon and 240 from Mandalay. After the 1988 protests and the crackdown establishing the military government that 1990s-2000s human rights advocates knew and hated, the regime made changes to Yangon to suppress future protests, evicting 500,000 people from city center in the process. Where normally such efforts mostly target poor people in order to create the illusion of a poverty-free city center and facilitate urban renewal, in Yangon the evictions targeted the middle class, which was sympathetic to the protest movement and had communities that had sheltered protesters. But even the new Yangon was not good enough for the generals, and so they shifted to Naypyidaw.

Part of the reason was that Yangon was too multiethnic, in a part of the country that was majority-Mon until the 20th century, while Naypyidaw could be more comfortably Bamar. But the main reason was security needs. The adversary in this case is not any foreign government – a city built in 2005 by a government that might worry about American-led regime change would look at what was going on in Iraq and opt to maintain its capital in a large, dense central city to facilitate insurgency and make it easy to hide among the civilian population. Naypyidaw instead does the exact opposite – it’s easy for a superior military force to take. Rather, its threat model is a popular uprising, and thus the modernist planning with separation of uses exists to prevent the broad public from being able to stage an insurgency. There is extensive regime propaganda in the city, such as national museums telling uncritical histories, but no major religious sites, since those might shelter protesters, as happened in 1988.

The urbanism of Naypyidaw is, essentially, a giant military camp. It is designed with strict separation of uses and large roads between different complexes for movement between them; people are not expected to walk between places. The Guardian calls it a post-apocalyptic suburbia, but I don’t think that’s quite right. In an auto-oriented American city, there’s nowhere to walk, but everyone owns a car and the development forms make it convenient to drive to one’s work and regular non-work destinations. Dubai, criticized vociferously among urbanists for its tackiness and auto-oriented character, is a place where one can drive or be driven to shopping malls and towers within a close distance. Naypyidaw doesn’t have any of this and doesn’t seem to even try; it’s a collection of sites, designed for no need but that of control by the military of a population that does not want to be controlled by it. It’s a monument not to modernist urbanism, though it tries to affect that, but rather to destruction of value by an unwanted government.

New Administrative Capital

The situation in Egypt, to be clear, is a lot less brutal than in Burma. At the same time, Egypt is several times richer, which creates more value that can be extracted and given over to cronies. This can be seen in the construction of the NAC, to replace Cairo.

The immediate history of the NAC is that in 2011, Egypt famously had the Arab Spring revolution overthrowing Hosni Mubarak; in the subsequent election, the only preexisting organized political force, the Muslim Brotherhood, won the election, leading Mohamed Morsi to take office as president starting in 2012. The election was free and the state of civil liberties improved, but the Muslim Brotherhood was making moves to consolidate power, leading to fears among human rights and democracy protesters of new authoritarianism, which led to a protest movement in 2013 called Tamarod, demanding new elections; later in the same year, the military reacted to the protests by launching a coup, removing Morsi from power and restoring the military elements of the prior regime, including a pardon of Mubarak, who was on trial for corruption. Eventually, the chief of the Egyptian Armed Forces, General Abdel Fattah al-Sisi, won a rigged presidential election in 2014, and has been president ever since. Much of the focus of the protest movements was street protests in Cairo, where Tahrir Square became a global metonym for democracy protests (for example, in Israel, where people basically never draw any positive inspiration from Arab political trends). This created a need among Sisi and his inner circle for a new capital in the desert, built to forestall any future Tahrir.

The capital could not even be named New Cairo, because there’s already a New Cairo, an eastern suburb of Cairo built expressly in order to decentralize the capital; Cairo is a huge, dense city. For a while, it was mocked as New New Cairo, for its location even farther east of New Cairo; by now, it has the formal name New Administrative Capital, with construction having begun in 2016.

The NAC is designed around digital surveillance of the population, and showcasing that Egypt can develop the desert, and maybe decongesting Cairo. It has pretenses of being the next Dubai, but where Dubai invites global starchitects to buy prestige, the NAC is instead giving contracts to domestic elites (as was also the case for Naypyidaw); the military directly owns 51% of the agency developing the NAC and the state ministry of housing only 49%, and the contracts are designed to enrich people who are politically connected to the government.

The violence levels involved are, again, much lower than in Burma. But precisely because Egypt’s economy is solidly middle-income, it’s frustrating to see vast sums wasted on a military prestige project. Cairo’s congestion and overcrowding have a well-known solution, in the form of building a rapid transit network to facilitate non-car commutes, and connect not just the existing built-up area to the urban core but also to-be-built areas adjacent to it. It’s a metro area of 22 million people, about the same size as New York, but only has a three-line, 100 km metro network. These 100 km should be closer to 1,000.

To be clear, there is some development of the Cairo Metro. Line 3 is being extended as we speak, with a new section having opened this month. Overall, the third phase of the line, 17 km long, cost 40.7 billion Egyptian pounds per a statement in 2012, which in contemporary dollars is $2.6 billion in exchange rate terms and $9 billion in 2021 PPP terms. On Google Earth, it looks like 9 km of the line are underground and 8 km are elevated or at-grade; this more than $500 million/km cost is not even fully-underground. This is a line where the main contractor is Orascom – this isn’t a case of outsourcing the state to Japan, China, or both, and therefore building at high costs, as is common in Bangladesh, Pakistan, and Southeast Asia. Rather, this is entirely domestic waste. Most likely, the same contractors that are profiteering off of public money through the construction of the NAC are also profiteering off of public money for what little infrastructure the military government deigns to build in the capital that people actually live in.

The Future of Congestion Pricing in New York

New York just passed congestion pricing, to begin operation on June 30th. The magazine Vital City published an issue dedicated to this policy two days ago; among the articles about it is one by me, about public transportation investments. People should read the entire article; here I’d like to both give more context and discuss some of the other articles in the issue. Much of this comes from what I said to editor Josh Greenman when discussing the pitch for the piece, and how I interpret the other pieces in the same context. The most basic point, for me, is that what matters is if the overall quality of public transit in and around New York is seen to improve in the next 5-10 years. In particular, if congestion pricing is paired with one specific thing (such as a new subway line) and it improves but the rest of the system is seen to decline, then it will not help, and instead people will be cynical about government actions like this and come to oppose further programs and even call for repealing the congestion tax.

The other articles in the issue

There are 10 articles in this issue. One is my own. Another is by Josh, explaining the background to congestion pricing and setting up the other nine articles. The other eight were written by John Surico, Sam Schwartz, Becca Baird-Remba, Austin Celestin, Howard Yaruss, Nicole Gelinas, Vishaan Chakrabarti, and Henry Grabar, and I recommend that people read all of them, for different perspectives.

The general themes the nine of us have covered, not all equally, include,

  • How to use congestion pricing to improve transportation alternatives (me on transit investment, Yaruss on transit fare cuts, Nicole and Chakrabarti on active transportation, Henry on removing parking to improve pedestrian safety).
  • The unpopularity of congestion pricing and what it portends (Surico about polling, Becca about business group opposition, Schwartz on political risk, Yaruss again on why the fare cut is wise); of note, none of the authors are coming out against congestion pricing, just warning that it will need to deliver tangible benefits to remain popular, and Surico is making the point that in London and Stockholm, congestion pricing was unpopular until it took effect, after which it was popular enough that new center-right leadership did not repeal it.
  • Environmental justice issues (Becca and Celestin): my article points out that traffic levels fell within the London congestion zone but not outside it, and Becca and Celestin both point out that the projections in New York are for traffic levels outside the zone not to improve and possibly to worsen, in particular in asthma-stricken Upper Manhattan and the Bronx, Celestin going more deeply into this point and correctly lamenting that not enough transit improvements are intended to go into these areas. The only things I can add to this are that for environmental justice, two good investment targets include a 125th Street subway tunnel extending Second Avenue Subway and battery-electric buses at depots to reduce pollution.
  • Problems with toll evasion (Schwartz and Yaruss): there’s a growing trend of intentional defacement of license plates by the cars’ own drivers, to make them unreadable by traffic camera and avoid paying tolls, which could complicate revenue collection under congestion pricing.

The need for broad success

When discussing my article with Josh, before I wrote it, we talked about the idea of connecting congestion pricing to specific improvements. My lane would be specific transit improvements, like new lines, elevator access at existing stations, and so on, and similarly, Nicole, Henry, Chakrabarti, and Yaruss proposed their own points. But at the same time, it’s not possible to just make one thing work and say “this was funded by congestion pricing.” The entire system has to both be better and look better, the latter since visible revenue collection by the state like congestion pricing or new taxes are always on the chopping block for populist politicians if the state is too unpopular.

The example I gave Josh when we talked was the TGV. The TGV is a clear success as transportation; it is also, unlike congestion pricing, politically safe, in the sense that nobody seriously proposes eliminating it or slowing it down, and the only controversy is about the construction of new, financially marginal lines augmenting the core lilnes. However, the success of the TGV has not prevented populists and people who generally mistrust the state from claiming that things are actually bad; in France, they are often animated by New Left nostalgia for when they could ride slow, cheap trains everywhere, and since they were young then, the long trip times and wait times didn’t matter to them. Such nostalgics complain that regional trains, connecting city pairs where the train has not been competitive with cars since mass motorization and only survived so long as people were too poor to afford cars, are getting worse. Even though ridership in France is up, this specific use case (which by the 1980s was already moribund) is down, leading to mistrust. Unfortunately, while the TGV is politically safe in France, this corner case is used by German rail advocates to argue against the construction of a connected high-speed rail network here, as those corner case trains are better in Germany (while still not carrying much traffic).

The most important conclusion of the story of the TGV is that France needs to keep its high-speed system but adopt German operations, just as Germany needs to adopt French high-speed rail. But in the case of New York, the important lesson to extract is that if the MTA does one thing that I or Nicole or Henry or Chakrabarti or Yaruss called for while neglecting the broad system, people will not be happy. If the MTA builds subway lines with the projected $1 billion a year in revenue, politicians will say “this subway line has been built with congestion pricing revenue,” and then riders will see declines in reliability, frequency, speed, and cleanliness elsewhere and learn to be cynical of the state and oppose further support for the state’s transit operations.

The MTA could split the difference among what we propose. As I mentioned above, I find Celestin’s points about environmental justice compelling, and want to see improvements including new subways in at-risk areas, bus depot electrification to reduce pollution, and commuter rail improvements making it usable by city residents and not just suburbanites (Celestin mentions frequency; to that I’ll add fare integration). Nicole, Henry, and Chakrabarti are proposing street space reallocation, which doesn’t cost much money, but does cost political capital and requires the public to be broadly trusting of the state’s promises on transportation. The problem with doing an all-of-the-above program is that at the end of the day, projected congestion pricing revenue is $1 billion a year and the MTA capital program is $11 billion a year; the new revenue is secondary, and my usual bête noire, construction costs, is primary.

Quick Note: Different Anti-Growth Green Advocacies

Jerusalem Demsas has been on a roll in the last two years, and her reporting on housing advocacy in Minneapolis (gift link) is a great example of how to combine original reporting with analysis coming from understanding of the issue at hand. In short, she talks to pro- and anti-development people in the area, both of which groups identify with environmentalism and environmental advocacy, and hears out their concerns. She has a long quote by Jake Anbinder, who wrote his thesis on postwar American left-NIMBYism and its origins, which are a lot more good-faith than mid-2010s YIMBYs assumed; he points out how they were reacting to postwar growth by embracing what today would be called degrowth ideology.

I bring this up because Germany is full of anti-growth left-NIMBYism, with similar ideology to what she describes from her reporting in Minneapolis, but it has different transportation politics, in ways that matter. The positioning of German left-NIMBYs is not pro-car; it has pro-car outcomes, but superficially they generally support transportation alternatives, and in some cases they do in substance as well.

In the US, the left-NIMBYs are drivers. Jerusalem cites them opposing bike lanes, complaining that bike lanes are only for young childless white gentrifiers, and saying that soon electric cars will solve all of the problems of decarbonizing transportation anyway. I saw some of this myself while advocating for rail improvements in certain quarters in New England: people who are every stereotype of traditional environmental left-NIMBYism were asking us about parking at train stations and were indifferent to any operating improvements, because they don’t even visit the city enough to think about train frequency and speed.

In Germany, many are drivers, especially outside the cities, but they don’t have pro-car politics. The Berlin Greens, a thoroughly NIMBY party, are best known in the city for supporting removal of parking and moving lanes to make room for bike lanes. This is not unique to Berlin or even to Germany – the same New Left urban mayors who do little to build more housing implement extensive road diets and dedicated lanes for buses, streetcars, and bikes.

These same European left-NIMBYs are not at all pro-public transportation in general. They generally oppose high-speed rail: the French greens, EELV, oppose the construction of new high-speed lines and call for reducing the speed on existing ones to 200 km/h, on the grounds that higher speeds require higher electricity consumption. In Germany, they usually also oppose the construction of new subway and S-Bahn tunnels. Their reasons include the embedded carbon emissions of tunneling, a belief that the public transport belongs on the street (where it also takes room away from cars) and not away from the street, and the undesirability (to them) of improving job access in city center in preference to the rest of the city. However, they usually consistently support more traditional forms of rail, especially the streetcar and improvements to regional rail outside major cities. For example, the NIMBYs in Munich who unsuccessfully fought the second S-Bahn trunk line, whence the expression Organisation vor Elektronic vor Beton (the Swiss original omits Organisation and also is very much “before” and not “instead of”), called for improvements in frequency on lines going around city center, in preference to more capacity toward city center.

I’m not sure why this difference works like this. I suspect it’s that American boomer middle-class environmental NIMBYism is rooted in people who suburbanized in the postwar era or grew up in postwar suburbs, and find the idea of driving natural. The same ideology in Europe centers urban neighborhood-scale activism more, perhaps because European cities retained the middle class much better than their American ones, perhaps because mass motorization came to Europe slightly later. It also centers small towns and cities, connected to one another by regional rail; the underlying quality of public transportation here is that environmentalists who can afford better do rely on it even when it’s not very good, which hourly regional trains are not, whereas in the United States it’s so far gone that public transportation ridership comprises New Yorkers, commuters bound for downtown jobs in various secondary cities, and paupers.

Quick Note: Anti-Green Identity Politics

In Northern Europe right now, there’s a growing backlash to perceived injury to people’s prosperity inflicted by the green movement. In Germany this is seen in campaigning this year by the opposition and even by FDP not against the senior party in government but against the Greens. In the UK, the (partial) cancellation of High Speed 2 involved not just cost concerns but also rhetoric complaining about a war on cars and shifting of high-speed rail money to building new motorway interchanges.

I bring this up for a few reasons. First, to point out a trend. And second, because the Berlin instantiation of the trend is a nice example of what I talked about a month ago about conspiracism.

The trend is that the Green Party in Germany is viewed as Public Enemy #1 by much of the center-right and the entire extreme right, the latter using the slogan “Hang the Greens” at some hate marches from the summer. This is obvious in state-level political campaigning: where in North-Rhine-Westphalia and Schleswig-Holstein the unpopularity of the Scholz cabinet over its weak response to the Ukraine war led to CDU-Green coalitions last year (the Greens at the time enjoying high popularity over their pro-Ukraine stance), elections this year have produced CDU-SPD coalitions in Berlin and Hesse, in both cases CDU choosing SPD as a governing partner after having explicitly campaigned against the Greens.

This is not really out of any serious critique of the Green Party or its policy. American neoliberals routinely try to steelman this as having something to do with the party’s opposition to nuclear power, but this doesn’t feature into any of the negative media coverage and barely into any CDU rhetoric. It went into full swing with the heat pump law, debated in early summer.

In Berlin the situation has been especially perverse lately. One of the points made by CDU in the election campaign was that the red-red-green coalition failed to expand city infrastructure as promised. It ran on more room for cars rather than pedestrianization, but also U-Bahn construction; when the coalition agreement was announced, Green political operatives and environmental organizations on Twitter were the most aghast at the prospects of a massive U-Bahn expansion proposed by BVG and redevelopment of Tempelhofer Feld.

And then this month the Berlin government, having not made progress on U-Bahn expansion, announced that it would trial a maglev line. There hasn’t been very good coverage of this in formal English-language media, but here and here are writeups. The proposal is, of course, total vaporware, as is the projected cost of 80 million € for a test line of five to seven kilometers.

This has to be understood, I think, in the context of the concept of openness to new technology (“Technologieoffenheit”), which is usually an FDP slogan but seems to describe what’s going on here as well. In the name of openness to new tech, FDP loves raising doubts about proven technology and assert that perhaps something new will solve all problems better. Hydrogen train experiments are part of it (naturally, they failed). Normally this constant FUD is something I associate with people who are out of power or who are perpetually junior partners to power, like FDP, or until recently the Greens. People in power prefer to do things, and CDU thinks it’s the natural party of government.

And yet, there isn’t really any advance in government in Berlin. The U8 extension to Märkisches Viertel is in the coalition agreement but isn’t moving; every few months there’s a story in the media in which politicians say it’s time to do it, but so far there are no advances in the design, to the point that even the end point of the line is uncertain. And now the government, with all of its anti-green fervor – fervor that given Berlin politics includes support for subway construction – is not so much formally canceling it as just neglecting it, looking at shiny new technologies that are not at all appropriate for urban rail just because they’re not regular subways or regular commuter trains, which don’t have that identity politics load here.

Quick Note on Ecotourism and Climate

On Mastodon, I follow the EU Commission’s feed, which reliably outputs schlock that expresses enthusiasm about things that don’t excite anyone who doesn’t work for the EU. A few days ago, it posted something about green tourism that goes beyond the usual saying nothing, and instead actively promotes the wrong things.

The issue at hand is that the greenest way to do tourism is to avoid flying and driving. The origin of Greta Thunberg’s activism is that, in 2018, she was disturbed by the standard green message at school: recycle bottles, but fly to other continents for vacations and tell exciting stories. The concept of flight shame originates with her; she hasn’t flown at all since 2015 and famously traveled to New York by sailboat, but most of her followers are more pragmatic and shift to trains where possible (domestically) and not where it is too ridiculous (internationally, even within Europe).

So environmentally sustainable tourism means tourism that does not involve flying or driving. It means taking the train to Munich or Hamburg or Cologne – or Rome, for the dedicated environmental masochist – doing city center tourism, and at no point using a form of transportation that isn’t a train or maybe a bus.

But the European Commission isn’t recommending that. It’s telling people to choose ecotourism, with a top-down photo of a forest. From Europe, this invariably means flying long distances, and then getting around by taxi in a biome that Europe does not have, usually a tropical climate. The point of ecotourism is not to reduce emissions or any other environmental footprint; it’s to go see a place of natural beauty before it’s destroyed by climate change coming in part from the emissions generated by the trip to it.

This worse-than-nothing campaign comes at a time when there’s growth in demand for actually green tourism in sections of Europe. The more hardcore greens talk about night trains so that they can do those all-rail trips to more distant parts of Europe. People who believe that the Union might be able to do something instead hold out for high-speed trains.

Even with the Commission’s regular appetite for words over actions, there are things that can be done about greening tourism. For example, it could help advertise intra-European attractions that could be done by rail. Berlin is full of these “You are EU” posters that say nothing; they could be telling people how to get to Prague, to any Polish city within reasonable train range, to Jutland if there’s anything interesting there.

At longer range, it could be helping promote circuits of travel entirely by rail. There’s already an UNESCO initiative promoting circuits, designed entirely around ecotourism principles (i.e. drive to where you can see pretty landscapes). This could be adapted to rail circuits, perhaps with some promotional deals. People who go on vacation for 5 weeks at once could be induced to ride trains visiting a different city every few days, breaking what would be a flight or an unreasonably long rail trip into short segments; there are enough cycles in the European intercity rail network that people wouldn’t need to visit the same city twice. For example, one route could go Berlin-Prague-Vienna-Salzburg-Venice-Rome-Milan-Basel-Cologne-Berlin. This is a rather urban route; circuits that include non-urban rail destinations like Saxon Switzerland or the Black Forest are also viable, but the more destinations are added, the smaller the circuit can be.

Urban NIMBYism and Climate Apartheid

Climate apartheid is a term due to Desmond Tutu, about how rich places that are vulnerable to climate change, like New York and London, can use their wealth to avoid the worst of its effects through retreat to higher grounds or even flood walls, while poor places cannot. Already 15 years ago, he argued that “Adaptation is becoming a euphemism for social injustice on a global scale” and “the only solution to climate change is urgent mitigation.”

And now people using the language of social justice and environmentalism push for such apartheid through attempts to make it harder for people to live in rich cities where people’s environmental footprints are much lower than in rich suburbs and rural areas. The exact grounds vary depending on the NIMBY. What I’ve seen most recently is a call for urban rewilding, leaving patches of city undeveloped on the theory that they could be used to reduce environmental footprint and increase biodiversity. Naturally, the exact opposite would follow, and the cities would become more exclusive, causing more people to instead live car-heavy, high-emission lifestyles while the denizens of city centers look down on them for living a longer distance to work than is comfortable to bike.

The impact of urban NIMBYism

NIMBYism in cities comprises advocacy, almost always at an intensely local level, to reduce the quantity of residential and commercial development. To that effect, NIMBYs employ a variety of strategies, some of which explicitly use environmental language and others of which do not:

  • They argue that open space that is to be redeveloped is a valuable neighborhood park. In Berlin, this is the Tempelhofer Feld saga, where a treeless parade within the Ring, much of which is paved as former airport runways, is held as a park and even a wildlife habitat (there are actual wooded parks nearby). In Tel Aviv, Kikar HaMedina was built with redevelopment in mind, but this stalled until recently, as the people living nearby liked it as open space, much larger than a neighborhood of that size would normally have.
  • They moralize about urban design. This is where NIMBYs in the Western world tell people that skyscrapers are inhuman and associate them with East Asia or Dubai, places that they have little trouble portraying as inferior, for racist reasons. Ironically, while the NIMBYs use Singapore and Hong Kong as bywords for the evils of tall buildings, Singapore gets high marks on international rankings for rewilding, on the strength of its preservation of a large tract of tropical rainforest while the rest of the city’s area is redeveloped at high intensity.
  • They moralize about the people who would move into the city. This is most common among people who identify their NIMBYism as anti-gentrification: they complain that apartment dwellers (or, in places that already have apartments, dwellers of high-rises) have inferior values, do not socialize in the neighborhood enough to their (the NIMBYs’) taste, do not care about the things the NIMBYs care about the most (such as those treeless parades). In the United States this often includes the assertion that gentrifying cities are growing whiter, which they are not even there, let alone in Europe, where every new building that local NIMBYs accuse of bringing gentrifiers has a larger share of non-European names on the mailboxes than is average for Berlin.
  • They call for less centralized cities, thus rejecting commercialization of city center and near-center neighborhoods. European city centers are remarkably low-rise for their size and wealth; American ones have single-family zoning within a short distance of city center. In either case, NIMBYs explicitly justify it by moralizing against office jobs and the concept of the commute.

Whatever the justification, the outcome is to reduce the quantity of housing built as well as the amount of commercial development in the center. The less housing is built, the higher the rents are. The marginal residents who are so affected are usually not the ones who socialize in-neighborhood, and so the ones who do go ahead and assume that just because nobody they know got a lower rent through new construction, nobody else did either.

But the issue of apartheid is not exactly about prices. It’s about city size and environmental footprint. At the end of the day, Berlin’s per capita CO2 emissions are, per a shoddy (and since retracted) report complaining that it should stop building subways, 5.38 t/year, where the German average is 9.15. A larger Berlin fulfills German climate goals, by putting more people on top of a large public transportation system none of whose components is anywhere near capacity (the S-Bahn trunks run 18 trains per hour and the U-Bahn ones run 12-15; capacity is 24-30 on an S-Bahn system and more than that on a separate subway). The same calculation works for New York, London, or Paris. Thus, even construction that uses traditional techniques with heavy concrete and its high emissions is still on net an emissions reduction if it’s in a city with high mass transit usage.

Rewilding as adaptation

I can’t find the original article I saw about rewilding that claimed it was necessary for climate adaptation in large cities (no word about mitigation). But I’ve found others, by larger organizations. For example, here is Citizen Zoo, which claims that its mission is for people to live near wildlife:

Rewilding people is just as important as rewilding places.

Across the world, we have lost our connection to nature. Humans are the primary drivers behind the sixth mass extinction and climate catastrophe we are seeing before our eyes. The only way to solve these issues is through a positive connection between people and nature. This can inform behavioural changes and a co-existence of humans and wildlife that benefit biodiversity.

The biggest drivers of climate change are people who live far from other people, who drive long distances, and whose detached houses have high winter heating needs. One of the justifications used by people who actively prefer such lifestyle, rather than merely not being able to afford a city like New York or London, is proximity to nature. The line about losing the connection to nature was historically used by British and American patricians to argue for dispersion of city residents in the late 19th century, creating modern suburbia as we know it. It was then used again by NIMBYs in the 1960s and 70s arguing that tall buildings were inhuman (apparently, the residents of Singapore, Taipei, and other cities where high-rises are normal don’t count).

And here again, environmental pastoralist organizations invoke the climate catastrophe as an argument to engage in policy that makes this catastrophe worse.

YIMBYism and biodiversity

Climate change is by far the biggest environmental problem in the world right now. But it’s not the only one; there are real issues of biodiversity that aren’t quite about climate but instead are about habitat loss. The radical environmentalist Chris Clarke (who I still owe a post to about YIMBYism and environmentalism) long fought against development of utility-scale solar power in the Mojave Desert in a sensitive area with endangered turtles; Chris would point out that global environmental activism about habitat loss centers forest biomes and tends to denigrate deserts as lifeless and thus does not pay attention to their own biodiversity hotspots.

The YIMBY take on this is that larger and denser cities come at the expense of suburban sprawl, which encroaches on ecologically sensitive areas. Not for nothing, developers who only build single-family housing like zoning rules that make it harder to redevelop in cities. In Oregon, many of them opposed the statewide YIMBY bill permitting more infill housing, on the accelerationist ground that infill housing would reduce rents and reduce the political pressure to expand the state’s urban growth boundaries and release new fringe land for new housing.

But this means throwing away all pretense of adaptation, or rewilding, or bringing people closer to what someone who thinks travel by bus or subway is less moral than travel by bike thinks nature is. I don’t know if tall buildings make rich cities more resilient to climate change or less (I suspect it’s neither), and frankly, I don’t care. India and Bangladesh should think about how to be more resilient; the US and Germany should think about how to reduce their emissions. What I do know is that tall buildings are a substitute for low-density suburbs where people drive everywhere, which, when built, are likely to be replacing either wildlands or farmland, depending on the region.