The advantages of a 3D-printed house

Why build or purchase a 3D-printed house? Here are several advantages:

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3D printing offers potential solutions to major challenges for the U.S. housing market: reducing the greenhouse gas emissions causing climate change and rising housing prices contributing to surging homelessness. Some experts expect the American industry to boom in the next two to three years…

But 3D-printed houses are already 5%-10% cheaper than a regular build in the United States, according to Zach Mannheimer, CEO of Alquist 3D, which aims to build affordable 3D-printed homes to serve lower-income communities, and experts predict costs will go down as the industry expands. A 2018 study in the academic research publication IOP Science: Materials Science and Engineerings, based in the U.K., argues that 3D printing can cut costs by at least 35%

If scaled up, 3D-printed buildings are significantly better for the environment than those that are built from scratch on-site. The building process cuts waste by 60%because it only manufactures the materials required. There’s no need to trim or subtract excess materials so they aren’t sending unused wood, concrete or glass for window panes to the landfill, according to academic research. And 3D printers work better with nontraditional cement alternatives such as “hempcrete” — a mixture of hemp, sand and other materials — than they do with regular concrete. That could encourage the concrete industry to pursue more sustainable alternatives to concrete, which creates significant greenhouse gas emissions in its production…

HUD seems optimistic about 3D-printed houses as a climate change solution. “3D printing is one of the promising advances in construction which the HUD team sees as having the potential to lower housing costs and increase energy efficiency and resilience,” a HUD spokesperson told Yahoo News in an email.

While there are still multiple barriers to overcome, the advantages listed above sound intriguing. If costs are consistently lower, building speed is quicker, and there are sizable environmental payoffs, this could interest many in the housing industry ranging from those looking to make money to people searching for cheaper housing.

All those advantages noted above lead me to wonder about barriers to entry in this field. Can conventional builders pivot or would they rather continue with their approaches? Are there companies more in the tech or manufacturing fields who would get into housing? Can we envision a point where individual property owners could use 3D-printing to do their own thing?

With one person in the article estimating only 10 such homes were built in the United States last year, even a small increase in numbers next year could lead to a sizable percentage increase.

What if a new social class symbol is leaving your lawn covered in leaves for the good of the earth?

Clearing the leaves from your lawn is part of a set of practices and displays involving the lawn that are related to social class. This includes a green lawn and a weed-free lawn. However, will these practices be disrupted if new recommendations suggest leaves should stay on the lawn because they are good for the grass and soil?

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I can imagine this as part of a new set of lawn practices in the coming decades. This could include less grass. Grass that is not necessarily green. Fake turf. More stones, gravel, and rock. No watering. Smaller yards or no yards. Overall, less emphasis on a particular kind of lawn and more variety.

But, this could take a while. Practices regarding clearing leaves have a long history. Social norms take time to change. It could happen in a few communities or among influential people that lead the way. Maybe it requires some influential social media actors.

In my own yard, in recent years I have cleared a good number of the leaves and left others. Some get blown away and others buried by snow. Not every leaf has to go. Some stay in the bushes and beds. This year, I piled some leaves in a new garden we started earlier this year. We will see what is left in the spring and how the new growth begins.

Americans love highways so much they are willing to volunteer to keep them clean?

I saw my share of Adopt-a-Highway signs this summer on driving trips. Here is some of the history of the program:

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The Birth of Adopt-a-Highway

The idea hit James Evans like an empty soda can, or maybe it was a discarded candy wrapper. Evans, an engineer for the Texas Department of Transportation, was driving one day in 1984 when he saw litter blowing out of the back of a pickup truck. Littering was a growing problem in Texas at the time, and while Evans knew that his department didn’t have the resources to combat it, he saw a prime opportunity to promote volunteerism. One year later, Billy Black, the public information officer for the Tyler District of the Texas Department of Transportation, collaborated with Evans and organized the first Adopt-a-Highway program.

How the Program Works

The program varies slightly by state, but volunteers typically apply to adopt at least two miles of highway for two years, and are responsible for cleaning that stretch at least four times per year. In return, the adopter’s name is recognized on a sign along that stretch of highway. The Adopt-a-Highway program saves taxpayers millions of dollars in cleanup costs and allows state governments to allocate transportation funds to other projects. The number of state employees devoted to highway cleanup and beautification has plunged since the advent of the Adopt-a-Highway program. A number of states, including New Hampshire, have Sponsor-a-Highway programs, where volunteers make donations to pay for maintenance crews to clean a stretch of highway in exchange for recognition on a sign…

The Adoption Movement Spreads

The Adopt-a-Highway program was a huge success in Texas and other states soon took notice. The program, or a variation thereof, eventually spread to all 50 states, as well as Puerto Rico, and several countries, including Australia, Japan and Spain. The most common adopters are civic groups and local businesses, though individuals occasionally adopt. Celebrities, including Bette Midler and Robin Williams, helped raise the profile of the program by adopting their own stretches of highway. Today, a handful of for-profit companies manage the sponsoring of highways by large companies looking for positive publicity and what amounts to advertising space on a small billboard.

The description above hints at the convergence of multiple forces: a growing environmental movement, efforts to encourage civic engagement and pride, looking for ways to cut government costs, and opportunities for some marketing.

But, this could be put simply: largely for free, Americans clean up highways. Groups and individuals take time out of their schedules to pick up garbage and debris. Americans love driving and the way of life it is tied up with so much that they clean the highways that enable quick travel via car. Adopt-a-highway works because Americans like highways so much.

Consider an alternative approach. Instead of cleaning up littering and criminalizing the practice, what about deemphasizing highways and major roadways and pursuing other forms of transportation and denser housing? This may seem like a difficult task but so is cleaning the tens of thousands of miles of highways, whether through paid employees or mobilizing volunteers all over.

Going off the grid in a suburban setting

What issues might arise if a suburbanites want to take their residence off the grid?

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Many off-gridders have glanced at their water bills and decided they’d rather use the water that falls from the sky for free, but some states make rainwater collection systems very difficult to install in your home, or have strict limits on how much rainwater can be harvested and how it can be used (for example, Colorado only allows certain properties to collect 110 gallons, which can only be used outdoors). For waste management, installing a septic system in a crowded urban neighborhood will be nearly impossible, and many states have extremely strict regulations surrounding the installation of composting toilets (not to mention extremely strict regulations about what you can do with all that waste once you’ve collected it).

Additionally, local municipalities might have laws that supersede or enhance statewide restrictions, and Home Owner Associations (HOAs) may have rules that prevent you from making the changes necessary to your home. These rules can beprettycomprehensive, too—some HOAs don’t allow clotheslines for drying clothes, for example, and can even forbid solar panels for aesthetic reasons. Condominium boards may also resist some of your off-grid choices. Bottom line: before you do anything, check the local laws and regulations that might apply to you.

Finally, while installing solar panels on your property is more or less legal in every state (and many states encourage it), not all states or local municipalities will allow you to actually disconnect from the power grid. If you feel it’s important to literally be off-grid, you’ll need to do some digging before you assume anything; and in multi-family structures like condominiums it might even be physically impossible to accomplish. Of course, the flip side to remaining connected is that in many cases you can sell excess electricity back to the grid—and if your solar rig fails at halftime during the Super Bowl, you’ll still have power…

Of course, if you’re going to grow your own food in the city, you’ll need enough space for that, too. It’s not impossible to find city homes with yards or large outdoor spaces where you might be able to grow your apocalypse garden (and even raise chickens!), but those houses will obviously be more expensive. And your property deed or local regulations might limit your ability to have “livestock” of any kind on your property (and your neighbors may or may not be excited about those chickens).

Three things strike me after reading this:

  1. Suburban life is ruled by a series of local regulations. Suburbs on the whole might have similar guidelines and expectations compared to other kinds of places but local control can lead to oddities.
  2. The ability to live in one’s own residence is connected to community regulations and a social contract with surrounding residents. This leads to two questions: can a resident go off the grid and should a resident go off the grid? What would the neighbors think?
  3. I wonder how many suburbs are prepared for this possibility. Even if regulations make it more difficult to go off the grid, what would happen in communities if someone really wanted to pursue this and they had the resources and means to pull it off?

Can new suburban developments be sustainable?

A long-proposed big suburban project north of Los Angeles aims to be sustainable:

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The company’s proposals promise a reprieve from California’s existential crisis about its way of life, suggesting that the environmental consequences of the state’s notorious sprawl can be reformed with rooftop solar panels, induction cooktops, electric cars, and careful bookkeeping. The threat of wildfires can be held at bay by stricter building codes. These proposals preserve the idea that, although the climate may be changing, the California dream of sunshine, a single-family home, and a two-car garage needn’t change at all.

But the debate it intense about whether the sustainable features of the development offsets what suburbia brings:

Cheap fossil fuels, the supremacy of private-property rights, and the maximization of shareholder value have, for decades, dictated the patterns of land use in America. People need homes, and, in Southern California and other growing metropolitan areas, those homes get built in areas far from the centers of cities. Disasters that follow this approach are attributed to natural causes or climate change, rather than to the avoidable flaws of poor planning. Consider the Marshall fire that burned a thousand homes last December, including all of a hundred and seventy-one properties in a nineteen-nineties-era subdivision built on the outskirts of Boulder County, Colorado—or the disappearance of water from exurbs constructed in the two-thousands in the Rio Verde Foothills, outside of Scottsdale, Arizona. Even reasonable predictions on a twenty-year event horizon are seen as fussy impediments to construction…

California has a severe housing shortage; a recent state assessment called for more than a million new units in Southern California to meet demand. Barry Zoeller, an executive at the Tejon Ranch Company, told me, “That’s going to have to take, in our estimation, a combination of both infill development in urban areas and also new master-planned communities of sufficient scale that can also meet climate-change criteria.” But many environmentalists argue that the imbalance between jobs and housing in Los Angeles can not be solved by building houses that are a thirty-minute drive from the city’s outermost suburbs. “Aren’t there better places to build?” Pincetl asked. “Yes, but you don’t own the land, so no.” She added, “If we’re turning over the provision of housing and the land markets to private entities, their motivation is not to house people. Why are private-equity firms coming into the real-estate market? Tell me. Not to provide housing.”…

I used my phone to scan QR codes and open the self-entry locks on a handful of model homes by Lennar, KB Home, and Toll Brothers, among others. The houses were built close together. They were large and well appointed, with gray laminate floors, giant appliances, many bathrooms, and cold air-conditioning. Some stoves at Valencia were electric, but many were still gas ranges—the era of banning natural-gas hookups hadn’t arrived when this development was approved. Some of the planned homes were already sold out, and a steady stream of racially diverse prospective buyers in luxury cars made their way around the neighborhoods-to-be. It looked like every other subdivision I’ve ever been in: paved-over farmland with a few transplanted trees, an island in a landscape hostile to pedestrian life. Maybe I just wasn’t seeing it with new eyes. The wind blew hot and the sun beat over the newly built homes, and from far away came the faint screams of people riding the roller coasters at Magic Mountain.

This is a decades-long issue as suburbs, first found in the United States in the 1800s, exploded in popularity and policy in the 1900s. With the expansion of driving and highways, the postwar suburbs sprawled in all directions from big cities and have not stopped since. All of this comes at an environmental cost: all of the materials used, the pollution from all of the driving, the inefficiencies of single-family homes, and the loss of land and habitat.

There are numerous ways to make suburbs more sustainable. This includes the moves suggested above as well as increased suburban densities, mass transit options or walkability or other transit options so that driving is not the only options, and better locations nearer population centers and jobs and away from important land and habitats.

So, where exactly is the line where suburbs might be “sustainable enough”? The article above suggests this line is in flux as communities, states, and other interested actors negotiate and set regulations for new development. It is unlikely that all suburban development will be banned or limited and it is unlikely that all suburban development will just happen without any questions about the environmental costs. This line can also vary across contexts as the local concerns are different outside of Los Angeles than they might be outside Columbus, Ohio or Jacksonville, Florida.

Suburban lawns and religious alternatives

With religious motivation, the suburban lawn can be transformed into an area of biodiversity:

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Mr. Jacobs is an ecologist and a Catholic who believes that humans can fight climate change and help repair the world right where they live. While a number of urban dwellers and suburbanites also sow native plants to that end, Mr. Jacobs says people need something more: To Reconnect with nature and experience the sort of spiritual transcendence he feels in a forest, or on a mountain, or amid the bounty of his own yard. It’s a feeling that, for him, is akin to feeling close to God…

Mr. Jacobs, for his part, looks around at all the pristine lawns (“the lawn is an obsession, like a cult,” he says) and sees ecological deserts that feed neither wildlife nor the human soul. “This is a poverty that most of us are not even aware of,” he said.

And he has started a movement to promote better ecology:

About 20 years ago, he began compiling quotes from the Bible, saints and popes that expound on the sanctity of Earth and its creatures, and posting them online. He considered naming the project after St. Francis of Assisi, the go-to saint for animals and the environment. But, not wanting to impose another European saint on American land, he instead named it after Kateri Tekakwitha, a 17th Century Algonquin-Mohawk woman who converted to Catholicism as a teenager and, in 2012, became the first Native American to be canonized…

Three years ago, Mr. Jacobs took a step further, teaming up with a fellow Catholic ecologist, Kathleen Hoenke, to launch the St. Kateri Habitats initiative, which encourages the creation of wildlife-friendly gardens that feature native plants and offer a place to reflect and meditate (they also teamed up to write a book, “Our Homes on Earth: A Catholic Faith and Ecology Field Guide for Children,” due out in 2023). They enlisted other ecology-minded Catholics, and have since added an Indigenous peoples program and two Indigenous women to their board.

What exactly is the connection between religious faith in America and the suburban lawn? Two hints above:

  1. First, Jacobs suggests the lawn is “like a cult.” Americans put a lot of effort into keeping the lawn looking good. The lawn signals status and is part of necessary upkeep for the sacred single-family suburban home. The lawn may provide insight into someone’s soul. The devotion to the lawn has its own practices, beliefs, and organizations.
  2. Religious traditions have something about how to approach the earth and land. Jacobs draws on Catholic theology, tradition, and practice to develop both his personal personal practices and an organization that now has members around the world. In a country where a majority of residents are Christians of one tradition or another, how many suburbanites draw on religion to help them interact with their yard and nearby nature?

As more people reconsider whether to have a lawn or consider modifying their lawn, bringing religion into the conversation could help clarify what the lawn is all about. Is the lawn itself worthy of religious devotion or does it help point to larger and transcendent realities?

Naperville: large suburb built through decades of suburban sprawl now wants to be a leader in sustainability

The Naperville City Council recently approved several plans from the report from a sustainability task force that made a number of recommendations:

Aerial view of Naperville, Illinois

Highlights include transitioning to clean and renewable energy, incentivizing energy efficiency, developing a plan for electric vehicle infrastructure, increasing public transportation use and recycling efforts, and focusing on the maintenance of natural resources.

Other objectives include a 4% annual reduction in waste, energy use and vehicle miles driven in conjunction with an increase in tree planting to help decrease greenhouse gases by 4% each year.

One of the recent steps taken by the city was hiring Ben Mjolsness as Naperville’s first sustainability coordinator. Mjolsness on Tuesday talked about the many options and incentives residents have with energy efficiency and recycling.

Councilman Patrick Kelly said he looked forward to showcasing Naperville as a front-runner in sustainability.

Many communities will be pursuing such plans in coming years. But, the particular context of Naperville is interesting to consider for multiple reasons:

  1. It is a large and wealthy suburb. It has the resources to pursue this.
  2. Naperville likes to be a leader among suburbs and this may help further this status in coming years.
  3. Sixty years ago or even forty years ago, Naperville was much smaller in population and had a smaller footprint in land use. Today, it has nearly 150,000 people and roughly 39 square miles of land with much of this involving single-family homes.

In one sense, the growth patterns that helped make the Naperville of today possible – explosive growth in the postwar era built around homes and driving – also make pursuing sustainability more difficult. Take the reducing the miles driven goal from above. Some residents of Naperville could do this but many are in subdivisions whose roads then feed to large arterial roads. This does not work as well for biking (and the weather in the area may not help). Additionally, the sprawl makes mass transit more difficult. In the past, Naperville has tried buses in the community but they do not get much use (even as the train stations are some of the busiest with commuters going toward Chicago). The best way for Naperville to achieve this goal may be to encourage local businesses to allow employees to work from home, thus limiting commuting needs.

Not mentioned in the news article above (it could be in the report) is the density of the community. One way to improve sustainability in the long run is to have denser housing, particularly near locations where other forms of transportation other than driving are possible. This could be in and around the downtown. It could be in different nodes around the community where there are jobs or where it would be possible to pursue transit-oriented development. As a bonus, denser housing might also provide more opportunities for affordable housing. Naperville has thought about these options in the past but they are not always popular given the single-family home character of the community.

As Naperville pursues sustainability, some actions will be relatively painless given what the community can do. Other conversations about long-term changes or how to address sprawl might take much longer for a consensus to emerge.

Bambi, technology, and avoiding death

An excerpt from Sherry Turkle’s new book recalls a conversation about how technology could help us move beyond death and attachment to people:

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What was wrong with Bambi? Every kid sees Bambi. Marvin’s response has stayed with me for half a lifetime: “Bambi indoctrinates children to think that death matters. Someday we will conquer death by merging with computers. Such attachments—Bambi’s attachment to his mother, for example—will be unimportant. People need to learn to give that stuff up.” I knew Marvin to be a loving father and husband. But in his mind, attachment would only be an impediment to progress in a world where people and machines evolved together.

Marvin Minsky died in 2016. But I’m still fighting his idea, now more than ever part of the cultural mainstream, that it is good to have devices that can wean us from our dependency on one another. For Marvin, the burdens that come with human bonds were unnecessary and inefficient because an engineering solution was on the horizon—we are ultimately going to mate with machines or evolve into machines or become one with machines.

These ideas are seductive. Of course we want technology to bring us sharper wits and a cure for Parkinson’s. We like the idea that some kind of artificial intelligence can help monitor the safety of isolated elders. And then we are caught short. There is a red line—one I have seen so many people cross. It’s the line when you don’t want children to get attached to their mortal mothers because they should be ready to bond with their eternal robot minders. It’s the line where you take your child as your experimental subject and ignore her, registering her tears as data. It’s the line you cross when one of your classmates commits suicide by jumping out a window and you joke about the laws of physics that were at work in his descent. It’s the line you cross when you know that the car you manufacture has a design flaw and a certain kind of impact will kill its passengers. You’ll have to pay damages for their lives. What is the cost of their lives in relation to that of redesigning the car? This is the kind of thinking that treats people as things. Knowing how to criticize it is becoming more pressing as social media and artificial intelligence insert themselves into every aspect of our lives, because as they do, we are turned into commodities, data that is bought and sold on the marketplace.

At the very moment we are called to connect to the earth and be stewards of our planet, we are intensifying our connection to objects that really don’t care if humanity dies. The urgent move, I think, is in the opposite direction.

The idea of progress through technology is fairly ingrained in the American consciousness. But, is this the sort of progress people want? Death – and social interaction – comes to all people and leaning it these features in life might just lead to better lives.

At the end of this section, Turkle appeals to the environmental movement to help people back toward conversations about social interactions, empathy, and death. It would be interesting to see who from different arenas would be interested in joining a movement back toward empathy and human understanding. Numerous religious traditions? Humanities scholars? Proponents of democracy? People who own small businesses? There is a chance here to make common cause across groups that may be further apart on other polarizing issues.

Considering the environmental and material costs of Internet music

A new book considers what it takes to record, produce, sell, and consume music in today’s world:

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Listening to music on the Internet feels clean, efficient, environmentally virtuous. Instead of accumulating heaps of vinyl or plastic, we unpocket our sleek devices and pluck tunes from the ether. Music has, it seems, been freed from the grubby realm of things. Kyle Devine, in his recent book, “Decomposed: The Political Ecology of Music,” thoroughly dismantles that seductive illusion. Like everything we do on the Internet, streaming and downloading music requires a steady surge of energy. Devine writes, “The environmental cost of music is now greater than at any time during recorded music’s previous eras.” He supports that claim with a chart of his own devising, using data culled from various sources, which suggests that, in 2016, streaming and downloading music generated around a hundred and ninety-four million kilograms of greenhouse-gas emissions—some forty million more than the emissions associated with all music formats in 2000. Given the unprecedented reliance on streaming media during the coronavirus pandemic, the figure for 2020 will probably be even greater.

The ostensibly frictionless nature of online listening has other hidden or overlooked costs. Exploitative regimes of labor enable the production of smartphone and computer components. Conditions at Foxconn factories in China have long been notorious; recent reports suggest that the brutally abused Uighur minority has been pressed into the production of Apple devices. Child laborers are involved in the mining of cobalt, which is used in iPhone batteries. Spotify, the dominant streaming service, needs huge quantities of energy to power its servers. No less problematic are the streaming services’ own exploitative practices, including their notoriously stingy royalty payments to working musicians. Not long ago, Daniel Ek, Spotify’s C.E.O., announced, “The artists today that are making it realize that it’s about creating a continuous engagement with their fans.” In other words, to make a living as a musician, you need to claw desperately for attention at every waking hour…

Devine holds out hope for a shift in consciousness, similar to the one that has taken place in our relationship with food. When we listen to music, we may ask ourselves: Under what conditions was a particular recording made? How equitable is the process by which it has reached us? Who is being paid? How are they being treated? And—most pressing—how much music do we really need? Perhaps, if we have less of it, it may matter to us more.

A full consideration of the ethics of music production and sales could raise a number of concerns. In addition to the environmental issues, how about how musical acts are treated? Who profits from streaming? How many people in the music industry come out in the end as better people?

In a non-COVID-19 world, it seems like an answer would be to support local live music. Even though live shows take up space and energy, if the musicians do not have to travel far, the audience is taking it all in without any recording and equipment for listening on their own standing in the way, and there is a positive collective spirit, this might be the ideal. This shifts the attention away from music as a commodity – I can own or stream a tremendous amount of music – versus music as an experience. Alas, this might be hard to do even without a pandemic given propensities toward large tours (particularly the mega-tours of the most famous acts) and lots of travel.

Thinking beyond music, this line of argument highlights how many of the direct outcomes or effects of consumption or actions are even further removed for people when information, products, and experiences are put through the Internet. If I am streaming, I may know the data comes from somewhere. But, how many people have seen a data center, let alone have some idea of what is involved?

A call for the Green New Deal to address sprawl and where people live

Want to pass a Green New Deal to benefit the United States? One commentator suggests it must reckon with the legacy and persistence of sprawl:

The Green New Deal is ostensibly a jobs program, an environmental program, and a redistributive program. If it’s a jobs program, it must wrangle with spatial mismatch. If it’s an environmental program, it must tackle the fact that an all-electric fleet of cars is functionally, at this time, a pipe dream. And if it’s a redistributive program, it must grapple with how roads paved into suburban and exurban greenfield developments deepen, expand, and exacerbate segregation.

A Green New Deal must insist on a new, and better, land-use regime, countering decades of federal sprawl subsidy. The plan already recognizes the need to retrofit and upgrade buildings. Why not address their locations while we’re at it? Suggestions of specific policies that would enable a Green New Deal to address land use have already emerged: We could, simply, measure greenhouse gases from our transportation system or build more housing closer to jobs centers. Reallocating what we spend on building new roads to paying for public transit instead would go a long way toward limiting sprawl.

Where we live is no coincidence of preference. Federal policy has enforced inequities and disparities for both the environment and vulnerable people at a national scale. It’s never too late to address the most fundamental aspect of our carbon footprint: where we live. And building housing near jobs, transit, and other housing—rather than ultra-LEED-certified parking garages—is merely a political choice. No innovation required.

This makes sense: how much can the United States truly address environmental matters if it does not reckon for the actions of roughly the last century that encouraged decentralization?

Here is what I wonder: would it be harder to address sprawl or environmental issues? On one hand, climate change is contentious and partisan. On the other hand, going after sprawl would require taking on deeply ingrained American values. When Americans value single-family homes, driving, and all that the suburban life offers, shifting priorities and funds to denser housing, mass transit, and cities may prove difficult.

The environmental movement in the United States has roots in suburbia. Rachel Carson was inspired by her suburban settings to write Silent Spring. But, truly reforming land use as opposed to making suburbs greener is a tall task. Of course, important decisions made today could address the issue of subsidized sprawl. American suburbs are neither natural or have to last forever. It would likely take decades to see the consequences on the ground.