On April 22, millions of people around the globe will celebrate Earth Day with events and activities that recognize the earth’s ecological and biological diversity, while highlighting the growing challenges facing the planet.
This year’s Earth Day coincides with the March for Science, a series of rallies and marches hosted in Washington, D.C., and additionally held in more than 500 cities across the world that focuses on the vital role science plays in protecting the earth’s natural resources. ASLA is a cosponsor of the March for Science and stands with the millions of individuals, organizations, and governments that recognize climate change as one of the greatest global challenges and the need for science-based data to address this issue.
Recently, the administration issued a series of executive orders and other policy actions that will threaten the planet and its citizens’ health, safety, and economies. Help us uphold landscape architects’ long-standing value of stewardship for the natural environment. Sign onto ASLA’s letter to Environmental Protection Agency Administrator Scott Pruitt, urging him to reconsider recent actions that will endanger our planet.
ASLA will submit the letter signed by landscape architects and other supporters into the official record requesting public comment on Presidential Actions Related to Regulatory Reform.
Seen from 28,000 miles away, the earth is beautiful. But its beauty is deceptive. We don’t see the 5 billion tons of surplus carbon we pump into the atmosphere every year, our toxic waterways or our sprawling megacities and the vast fossil fueled monocultures of cattle and corn that feed them. Most importantly, we don’t see the global archipelago of protected areas into which the world’s genetic biodiversity is now huddled. On this Earth Day, 2017 we are launching a new atlas dedicated to examining this archipelago in detail. It’s called the Atlas for the End of the World.
The first atlas, the Theatrum Orbis Terrarum (The Theater of the World) was published in 1570 by the famous book collector and engraver from Antwerp, Abraham Ortelius. With his maps Ortelius laid bare a world of healthy – we can now say “Holocene” – eco-regions ripe for colonization and exploitation. Lauded for its accuracy, the Theatrum quickly became a best seller.
Despite its apocalyptic title, our new Atlas is not about the end of the world per se; it is about the end of Ortelius’ world, the end of the world as a God-given and unlimited resource for human exploitation and its concomitant myths of progress. On this, even the Catholic Church is now clear: “we have no such right” says Pope Francis.
At face value, atlases are just books of maps. The maps in the Atlas for the End of the World are however, quite specific. They specifically show the difference between the United Nations Convention on Biological Diversity targets for achieving 17 percent (global terrestrial) protected area by 2020 and what is actually today protected in the 398 eco-regions, which comprise the world’s 36 biodiversity hotspots.
The so-called hotspots are regions agreed upon by the scientific and conservation communities as the most important and the most threatened biological places on earth. They are also places of exceptional linguistic diversity, much of which is also predicted to disappear by century’s end — suggesting perhaps, that the fate of nature and the fate of culture is one and the same. Many of the hotspots are also bedeviled by poverty, violence and corruption.
When my research assistants and I began this mapping project in 2013, the world’s terrestrial protected area total was hovering at 13.5 percent. Recent figures (2015 data) suggest a total of 15.4 percent. That’s 20.6 million square kilometers of land distributed across more than 209,000 sites in 235 different countries. So, with 15.4 percent already secured, only an additional 1.6 percent protected area is needed to satisfy the Convention’s 2020 target. This amount might seem paltry, but 1.6 percent of the earth’s terrestrial surface is 2.3 million square kilometers, the equivalent of nearly 700,000 Central Parks. That’s a Central Park stretching 70 times around the world! The research question we asked was where exactly should this additional protected land be?
According to the Convention, we can’t just fence off 1.6 percent of Siberia, or some other place, and then say we’re done! The crucial words in the small print of the Convention are that the global protected estate must be “representative” and “connected.” In theory, this means 17 percent of each of the world’s 867 eco-regions should be protected and connected.
The Atlantic Forests hotspot serves as an example. Currently it has only 8 percent of its territory under protection. Furthermore, when we break the hotspot down into its 15 constituent eco-regions, we find that 9 fall short of reaching 17 percent representation.
In total 21 of 35 hotspots currently fall short of reaching the 17 percent protected area target. More specifically, 201 of their 391 eco-regions fall short. With the new Atlas, any nation can know how much land needs to be protected and where if it wants to meet its obligations under the Convention. This is not to say that blanket targets are always appropriate on the ground, but, it’s a start.
In addition to identifying these protected area shortfalls, the critical nexus this research addresses is the global tension between food production, urbanization and biodiversity. On the world map (below) are three squares. The first and smallest is the world’s current crop land. The second, in the middle, is current crop land plus current grazing land, plus what is thought to be the world’s further potential supply of arable land – a total of 50 percent of the earth’s ice-free surface area. These leave 50 percent of the planet’s land for other uses, exactly what E.O. Wilson has called for in his book, Half Earth. 50 percent seems like a lot, but remember that 33 percent of this land is desert – land which by definition is not suited to either biodiversity or agriculture. Subtracting the world’s deserts leaves 17 percent for biodiversity – precisely the amount demanded by the Convention.
The bigger cause for concern is however the large square on the right: the land area necessary to feed 10 billion people. The UN is now forecasting anywhere between 9.5 and 13.3 billion by 2100, so 10 is a conservative estimate. But these projected 10 billion consumers are not “average” global citizens; let us suppose they are people like us; who shop in supermarkets and eat more or less whatever they want, whenever they want. They are average Americans; people with a food footprint of 1.4 hectares each. 10 billion people consuming at this level would require a whopping 93 percent of the earth’s ice-free terrestrial surface. In this scenario, not only would all the world’s arable land be used for agriculture, but so too would the world’s deserts, plus some. After we’ve finished our burgers, a mere 7 percent of the earth’s terrestrial surface would be left for biodiversity – for all practical purposes a mountainous zoo in the midst of a global monoculture of corn and cattle, hooked up to desalination plants.
These proportions of land-use will likely change when global population drops, as it probably will in the 22nd century due to socio-economic influences associated with urbanization. The other mitigating factor would be if the bulk of food production shifted to the oceans, and/or if meat could be produced independently of ruminants entirely. Then, ecological restoration could take place on a scale commensurate with that which is needed to partially correct the earth system’s current imbalances.
The challenge will be to get through this century’s incredibly tight ecological bottlenecks and come out the other end with some ecosystems, preferably the hotspots, partially intact.
The second major area of this research concerns 422 cities in the world’s hotspots. We zoomed into each city of 300,000 people or more and superimposed their 2030 growth trajectory (as per Karen Seto’s work at Yale ). We then plotted remnant habitat and threatened (mammal) species from the International Union for the Conservation of Nature’s Red List. What emerges are the flashpoints between future urban growth and biodiversity.
In the circular images of the cities in the Atlantic Forests hotspot, orange indicates zones of imminent conflict between urban growth and biodiversity. Alarmingly, 383 of the 422 cities in the world’s hotspots are on a collision course with unique and irreplaceable biodiversity.
And we are not just talking about a little bit of sprawl. If an extra 3 billion people move into cities by 2100, as is entirely likely, it means we need to build 357 New York Cities in the next 84 years, i.e., 4.25 New Yorks per year. Much of that growth will occur as both formal and informal sprawl in Africa, India and South and Central America, much of it up against biodiversity and much of it unregulated.
As documented in the Atlas our analysis suggests that most of these 383 cities that are encroaching on valuable habitat don’t have any semblance of as whole-of-city urban planning. This lack of planning at the city scale is also evident at the national scale: almost all the nations in whose jurisdiction the world’s hotspots lie don’t – in so far as we can tell – have national land-use plans incorporating biodiversity.
Under the Convention on Biological Diversity, each nation must develop a National Biodiversity Strategy and Action Plan. In practice, these tend to be platitudinous reports and most don’t take into account the 17 percent target for protected area. Most of the nations who are signatories to the Convention on Biological Diversity are also signatories to the Paris Agreement on Climate Change, which demands that they prepare national climate change plans.
The Atlas for the End of the World lays the ground work for the 142 nations who preside over the world’s biodiversity hotspots to now view climate change, biodiversity, and urbanization as interrelated phenomena and plan for the future. To do so would be a new beginning.
This guest post is by Richard Weller, ASLA, Martin and Margy Meyerson Chair of Urbanism and Professor and Chair of Landscape Architecture at the University of Pennsylania School of Design. Claire Hoch and Chieh Huang collaborated with Weller on the Atlas as research assistants.
Back in 2009, U.S. Chairman of the Joint Chiefs of Staff Michael McMullen tasked his staff to create a “grand strategy” for the United States. That job fell to Navy Captain Wayne Porter and now-retired Marine Colonel Mark “Puck” Mykleby, who later turned the results from the multi-year research study into a book: The New Grand Strategy: Restoring America’s Prosperity, Security, and Sustainability in the 21st Century. At the Biophilic Leadership Summit at Serenbe, an agricultural community near Atlanta, Mykleby asserted that the United States is now deeply embedded in an “unsustainable global system” that makes it susceptible to shocks, particularly from climate change. In addition, we are stuck with a “20th century economic engine.” The way forward to future sustainability is found in walkable communities, regenerative agriculture, and greater resource productivity. “We need to rebuild our own strength and credibility by setting a new example.”
Mykleby — who was described by Serenbe founder Steven Nygren as a “gentle giant with a big heart who can kill you with two fingers” — outlined in drill sergeant mode all the things that make our current global system unsustainable:
First, there is the rapid inclusion of many new consumers around the world. As the planet heads towards 9 billion people, we can expect to see a middle class of around 3 billion people. If they are consuming as Americans and western Europeans do now, we will need 4.5 Earths to maintain them. Second, climate change and increasing ecosystem degradation will reduce our access to resources and increase our vulnerabilities. And, lastly, there is a growing “infrastructure resilience deficit” — infrastructure worldwide isn’t set up to accommodate the anticipated population growth or coming nature-driven shocks.
(Mykleby also argued that using gross domestic product (GDP) as the primary measure of progress is really enabling all this unsustainable global growth and needs to be replaced with a gross national happiness metric, like Bhutan’s. We’ve discovered in the United States that “more shit isn’t going to make us happier.”)
In addition to being embedded in an unsustainable global system, the U.S. is also stuck with an “obsolete 20th century economic engine,” defined by suburban sprawl, consumer spending, high-input agriculture, massive federal subsidies, and quarterly reporting and capital gains taxes. This engine is “extremely fragile.” Agricultural in particular is in a “perilous place,” given climate change. On top of all this, we have “political dysfunction.”
Walkable communities help rebuild American strength by increasing social ties, particularly inter-generational ones. As baby boomers downsize and want to age in place, they seek connections to others. Millennials can’t afford cars or don’t want them, so they are also want more walkable places. In fact, research shows “some 60 percent of the country seeks communities with the attributes of smart growth.” But given the market hasn’t met demand, people are still paying a premium to live in these places.
Food production will need to increase 60-70 percent in coming decades to meet the demand from a growing population, just as climate change accelerates and ecosystems are further degraded. The only way to achieve this is “100 percent regenerative agriculture. We need to restore our top soils.” (Mykleby didn’t further define regenerative agriculture in his talk, but we are assuming it involves permaculture, introducing perennial grain plants, and other sustainable farming practices).
Lastly, according to The Atlantic, some 70 percent of Indian cities have yet to be built. A similar number can be found for many developing world cities. And all our developed-world urban communities are in a continuous process of being rebuilt. As the global population heads toward 9 billion and concrete production already accounts for 5-10 percent of global carbon dioxide emissions, we need “more advanced, resource-efficient, recycled building materials.”
If the U.S. “can get its ass in gear,” focusing on walkable communities, sustainable agriculture, and new housing materials will lead to a resurgence in jobs in the manufacturing, agriculture, construction, transportation sectors, and create the “economy of the future.” Mykleby also called for changing from a model of rampant material consumerism to an economy in which “we consume positive, meaningful experiences.”
While the path to sustainability is clear to him, sadly, the U.S. is now “doubling-down on the old economy. We are walking away from climate change, increasing inequality, and leaving international institutions.” As the supporters of the old business model hang on tight, they are setting us up to fail.
If you are unconvinced the U.S. is falling behind, Mykleby urges you to read China’s latest five-year plan, which aims to set the country on a “sustainable path, address social equity problems, and increase participation in international institutions.”
Deep in the woods southwest of Atlanta, Serenbe is a unique designed community — a mixed-use development, with clusters of villages comprised of townhouses and apartments fueled by solar panels and heated and cooled by geothermal systems, and vast open spaces with organic farms, natural waste water treatment systems, and preserved forests. A leader in the “agrihood” movement, which calls for agriculture-centric community development, Serenbe is now moving into wellness with its new development called Mado.
On a tour of the new town, which will add 480 homes, including some assisted living cottages, to the 1,400 that already house some 3,500 people, Serenbe founder Steven Nygren explained how his vision of wellness was inspired by the sustainable Swedish city of Malmö. He and his wife Marie traveled there, and they brought back lots of photographs, which they then gave to their planners, architects, and landscape architects.
The community now under construction is organized around common spaces set in gardens. Nygren fears a scenario in which you have two older residents out on their porches, but both are waiting for the other to invite them over. In Mado, the ground-level shared patios may create more opportunities for interaction.
Also, Nygren reached an interesting conclusion from his trip to Malmö: “They always connect streets into nature.” He decided to recreate that relationship in Mado, organizing the housing and common spaces along a central axis with ends that extend into nature trails.
Once this central organizational structure was decided upon, they brought in landscape architect and University of Georgia professor Alfred Vick, ASLA, who then created an innovative “food forest” to realize the concept of wellness in landscape form (see the bottom portion of the image above). It will function as an accessible outdoor living room, given throughout the space the gradient is less than 5 percent. It’s also a place where people can gather and also learn how to forage in the wider Serenbe landscape (see a close-up of its design below).
Vick said his vision was of a “edible ecosystem, an intentional system for human food production.” Using the natural Piedmont ecosystem as the base, Vick is creating a designer ecosystem of edible or medicinal plants, with a ground layer, understory, and canopy that also incorporates plants with cultural meaning and a legacy of use by indigenous American Indian tribes.
He imagines visitors to the forest foraging for berries, fruits, and nuts, including serviceberries, blueberries, mulberries, and chickasaw plums, as well as acorn and hickory nuts, which can be processed and turned into foods. Mado residents and chefs can harvest the young, tender leaves of cutleaf coneflowers, which are related to black-eyed susans. Or reach up to an arbor, which will be covered in Muscadine grape vines and passion flowers. Or take some Jerusalem artichokes, which were used by Cherokee Indians and today cooked as a potato substitute. Or pluck rosemary or mint from an herb circle. Vick left out peach and apple trees because they require fungicides.
“The primary goal is to engage residents,” Vick explained. There will be interpretive guides to explain how plants can be consumed, which will also “help encourage wider foraging when they are out in the Serenbe landscape.” Nygren wants everyone in the community connected to the productive cycle of nature and know when the serviceberries, blueberries, figs are ready for picking.
And the landscape is also designed to both provide a safe boundary — so grandparents can let kids roam — but also provide a natural extension into the rest of the landscape. While the Mado designs are still being developed, we hope that universal design principles, which call for fully-accessible seating and nearby restrooms, will be incorporated to ensure an 80-year old as well as an 8-year old can comfortably access and enjoy the landscape.
Nature can make our daily lives, which are mostly spent in buildings, much better. With access to ample sunlight; lots of indoor plants; views of trees, green roofs, and gardens outside; and the incorporation of natural building materials, designers can boost our well-being and productivity. But our landscapes really are the places to create the deeply restorative connections so critical to our health. In a talk at the Biophilic Leadership Summit, hosted at Serenbe, an agricultural community outside of Atltanta, Julia Africa, program leader, nature, health, and the built environment at Harvard T.H. Chan School of Public Health‘s Center for Health and the Global environment, and Micah Lipscomb, ASLA, senior landscape architect with Perkins + Will, offered a few ways to maximize the health benefits of our landscapes.
Africa has been doing extensive research on forest bathing programs in South Korea and Japan. According to Africa, “forest therapy centers can provide a range of services, including health assessments and counseling, fresh local foods, hot springs, and guided walks through forests believed to have medicinal properties.” Spending time in forests can provide cognitive, emotional, and physical benefits, but she added there’s “some debate as to whether the benefits spring from physical (phytoncides, exercise), sensory, or social stimuli.” She said while Japan is perhaps more well-known for “Shinrin Yoku” at its centers, South Korea is catching up and may have the more ambitious long-term strategy.
According to Africa, Korea Forest Service plans to open 34 public healing forests and two national forest healing centers by 2017. The goal is to engage Koreans “from cradle to grave” by building a continuous, life-long relationship with healing forests. To perhaps counter the increasingly-widespread digital addiction experienced by Koreans, caused by their smart phones and ubiquitous high-speed broadband, they seek to create “forest welfare services, a system in which forests are used to create health and well-being for the welfare of the nation across various life stages.” Furthermore, “500 forest healing instructors will be trained to staff these centers. And interdisciplinary medical research is planned, with the potential to yield a staggering amount of data on forest bathers.” Africa seemed awed by the effort, wondering “how can we apply this to the United States?”
Japan has 60-plus forest therapy bases, with 100 planned in the future. With the help of her translator Hui Wang, she interviewed five managers of forest bathing centers to better understand how they work. She found that “some forest bathing centers have relationships with companies that have an interest in the region, either through commerce or personal relationships. Employees may be sent to the centers for a few days as a subsidized health amenity. Rudimentary ‘health checks’ for basic indicators like blood pressure, heart rate, reflexes may provide a point of assessment at the beginning and end of a forest visit. If they enter a guided program, a daily schedule may include educational sessions, therapeutic meals, and instruction on taking in the forest through all five senses. Sugi and Hinoki trees are particularly sought after features of the environment, as they are believed to produce phytoncides, a broad class of aerosols that some believe ward off pests and, also, coincidentally, benefit human health.”
Africa wanted to discover if the forest bathing centers are “linked — functionally or notionally — with any other therapeutic landscapes or facilities?” She found that “no, they are isolated experiences, and the healing experience is conducted in forest bathing parks only.” Learn more about her research.
Africa made another interesting point: our relationship with nature is evolving, because nature itself is in a dynamic state of change, particularly as the effects of climate change ripple through our ecosystems. “Simply examining what appeals to us about nature and why is too simple. We need to keep refreshing our understanding as nature keeps changing.”
At the CARTI Cancer Center in Little Rock, Arkansas, patients in the cancer ward receiving infusions look out on a green roof designed by Perkins + Will.
On a technical note: Lipscomb cautioned that maintaining biodiverse species of plants in a designed landscape can be challenging for maintenance workers, so either there needs to be a budget for long-term training and maintenance, or landscapes need to feature hardy plants. “Align your plants with the anticipated level of maintenance.”
Lastly, Lipscomb is working on building biophilic connections for his own office of landscape architects and architects at Perkins + Will in Atlanta. Those working hard to integrate nature into our daily lives now get to experience the same benefits themselves. Partnering with University of Notre Dame psychologist Kim Rollings, Lispcomb brought lots of plants into some parts of the office, but not others, and established a control group to test whether there are cognitive benefits from gazing at them. They’ll release their findings in The Dirt early summer.
While green infrastructure is needed to manage stormwater and cool the air in our cities, these systems, as currently designed, aren’t enough. In the future, they must also boost biodiversity and help forge richer connections between humans and nature, argued a set of policymakers, academics, planners, and landscape architects, who are part of the nascent biophilic design movement. At the Biophilic Leadership Summit, which was hosted at Serenbe, an agricultural community outside of Atlanta, and organized by the Biophilic Institute, the Biophilic Cities Project, and Serenbe founder Steven Nygren, the main themes of biophilic urban planning and design were explored in an effort to achieve greater definition. Much work, however, still needs to be done to codify, measure, and popularize the strategies discussed.
As Timothy Beatley, a professor at the University of Virginia and one of the central leaders of the movement has explained in his recent book, The Handbook of Biophilic City Planning & Design, nature should be found everywhere, but especially in cities. Cities must remain dense and walkable, but they can be unique, memorable places only when they merge with nature. If well planned and designed, a city’s forests, waterfronts, parks, gardens, and streets can make out-sized contributions to the health and well-being of everyone who lives there.
The three-day summit mostly focused on the human side of the human-nature interactions fostered through biophilic design principles. What was missing was a discussion by ecologists and scientists on how biophilic planning and design actually benefits species, how to best measure a city’s biodiversity and human exposure to it, and therefore determine if a city is making real progress in their path to become more biophilic. Still, there were some valuable conversations.
“There has been a huge amount of progress in the last 15 years. But on the negative side, the growth of children with health issues has been enormous,” argued Robin Moore, director of the Natural Learning Initiative. Indeed, today, one of out three children in America is overweight or obese because of poor diets and a lack of exercise. Children now spend seven hours in front of some sort of screen per day, and just 10 minutes in “unstructured outdoor play.”
Mikaela Randolph, director of cities and nature at the Children & Nature Network, was less positive to start, stating that not all children, or adults, enjoy nature to the same degree in their communities. In many underrepresented communities of color, there are fewer trees, playgrounds, and parks. “That’s an issue of life and death. Is that segment of the city going to live as long?” Studies have correlated tree cover and mortality rates, and the conclusions for those without daily access to nature in their communities are grim.
Moore said we must get serious about coming up with a strategy for incorporating nature into the places where children spend most of their day: schools, child care centers, and playgrounds. He called for targeting municipal, county, and state decision makers. “Changing the laws and codes is the next step.”
Furthermore, homeowners associations, which often just drop in standards created by a national organization, need to change their model, so communities can becomes “more nature and children focused,” argued Hayden Brooks, co-founder, Children in Nature Collaborative. Nygren agreed and said “developers know every rule for cars but don’t know the rules for pedestrians and kids. What if developers had to demonstrate a connection to nature?”
Randolph and Hayden explained how their organizations help local non-profits in a set of cities come together to maximize their impact. The Children & Nature Network, which partners with the National League of Cities, removes obstacles to “green school yards, early childhood education, out of school time, youth leadership, and park activation.” The Children in Nature Collaborative enables local planning processes. One successful result of their efforts is the Children’s Outdoor Bill of Rights, which was just passed by the city council of Austin, Texas.
Their efforts also yielded one of the best ideas discussed at the conference: “green school parks,” which are about first involving communities in redeveloping and greening school yards and then making them accessible to the community outside school hours. “These places are then co-owned by the communities. They have access too.”
Lastly, Moore cautioned that while green infrastructure is great, “there needs to be places for kids in it.” He pointed to Buffalo Bayou in Houston, Texas, which was designed by landscape architects SWA Group, as a positive example of what to do. The entire park and flood mitigation system makes room for a nature playground. It’s on a steep site and periodically floods, but “it’s where we want it to be — embedded in the urban environment.”
The Biophilic Cities Project is now putting together a database of codes that can serve as inspiration for communities. He said there are many areas to cover in the built environment, but “the urban forest has the oldest set of biophilic codes — every city limits what you can or can’t do with trees.”
And we heard about efforts to enshrine biophilic planning and design in a few major cities. Stephanie Stuckey, chief resilience officer for Atlanta, is partnering with the Nature Conservancy to create a map that identifies “which trees need to be protected strategically to maintain biodiversity.”
Mary Lynn Wilhere, with the district department of the environment and energy in Washington, D.C., said “putting biophilia into the codes is the next step.”
D.C. is already doing a lot — it’s implementing a wildlife action plan, which aims to restore and create wildlife habitats, and developing a GIS map of the city’s 1,000 small parks to figure out the best way “to link them up into pollinator pathways, where people can have more biophilic experiences.”
The city recently created a green area ratio (GAR) modeled after Singapore’s, which requires developers to replace the green space they have built over on the ground in their building’s roof and facade. “We want to figure out how to use the GAR to advance biophilia.” Policymakers, planners, and “developers will want clear language on biophilia requirements,” based in the latest scientific data. Another plus to the new approach: D.C’s new stormwater runoff and GAR fees are expected to “pay for a lot of biophilic projects.”
And then Ellen Dunham-Jones, director of the urban design program at Georgia Tech school of architecture and co-author of Retrofitting Suburbia, gave everyone a reality check, arguing biophilic planners and designers must look beyond cities to suburbia, which is where 67 percent or 80 percent of Americans live (depending on how you calculate).
Of the 1,400 case studies she has collected on efforts to make suburbia more walkable and sustainable, she found that, sadly, only 2 percent of projects featured “regreening.” One example in Tulsa, Oklahoma, Guthrie Green Urban Park, a geothermal and solar-powered park by SWA Group, took root over a truck loading facility. Beyond catalytic projects or code changes, Dunham-Jones floated some other ideas for how to “incentivize re-greening,” including green infrastructure banks and bonds, or a biophilia revolving trust.
Dunham-Jones concluded that “regreening is not happening enough.” And if it does happen, “it’s not justified in terms of biophilia.” At least half of all suburban retrofits need to be transformed into green spaces that can boost biodiversity. “But we are nowhere near close.”
New Urban Parks and Public Spaces to See in 2017– Curbed, 4/3/2017
“The urban park, from well-manicured, small lots in residential neighborhoods to massive, city-defining landmarks such as Central Park, have long been centerpieces of city life. But in an age of climate change and evolving urban-planning concepts, parks are being viewed through many different lenses.”
Homeowners Want Their Landscapes to Stand Out on the Block– Houston Chronicle, 4/7/17
“The backyard was once just about having trees, shrubs and annuals for pops of color. Today local landscape architects and designers say that stylish outdoor spaces are getting as much consideration as the homes they’re attached to.”
The 11th Street Bridge Park Isn’t Just a Vanity Project– The Washingtonian, 4/12/17
“The 11th Street Bridge Park will physically connect both sides of the Anacostia River. It’s a 1,200-foot-long, pedestrian-only expanse that will let people stroll between Capitol Hill and Anacostia. The big question is whether it will socially connect them.”
You Should Care About Preserving This Lake Park Bridge – Milwaukee Magazine, 4/12/17
“Do Milwaukeeans care about their Frederick Law Olmsted-designed parks and the current and potential value they offer? If the answer is yes, the debate about preserving the elegant Ravine Road Bridge in Lake Park deserves the attention of every concerned citizen.”
While we have all experienced the effects of the information technology revolution now underway, we may be less aware of the impact of the new “materials revolution,” argues University of Minnesota professor Blaine Brownell in his excellent new book Transmaterial Next: A Catalog of Materials That Define Our Future. Building materials are being transformed to respond to our planetary environmental crisis, lower costs and boost efficiency, and provide new media for creative expression. Given the serious problems facing the Earth, the scale of the ambition is heartening.
Transmaterial Next is rich with interesting details and well-organized, with sections on concrete, mineral, metal, woods and biomaterials, plastic and rubber, glass, paint and coatings, fabric, light, and digital materials. More than 100 brief case studies on materials offer brief summaries, images, the state of commercial readiness, and future possible impacts. He also defines the materials in terms of the trends they represent.
For example, future materials may be ultra-performing, meaning they are “stronger, lighter, more durable, and flexible than their conventional counterparts;” multi-dimensional, “with greater depth and richness;” re-purposed, as they often “replace precious raw materials with less endangered, more plentiful ones, and divert products from the waste stream;” recombinant — because “two or more different materials act in harmony to create a product whose performance is greater than the sum of its parts;” intelligent, because they “take inspiration from biological systems and are therefore less wasteful;” transformational, because they “undergo a physical metamorphosis based on environmental stimuli;” and interfacial — as they can serve as a linkage between the “physical and virtual worlds.”
Brownell does a great job of explaining the environmental costs of our exploding resource use and how new, less wasteful materials will help.
Concrete, which was used by the Romans before falling out of favor for centuries, is now the “most heavily used material on Earth after water.” Concrete production accounts for some 5-10 percent of global carbon dioxide emissions, and its use is growing 2-4 percent year, given its relatively short life-span and difficulty to recycle.
Concrete production can be far less polluting. Brownell identifies how simply replacing some of the Portland cement portion of cement with “alternative cementitious materials, such as fly ash or slag” can reduce emissions by some 46 percent. He calls for replacing problematic steel, which is used as a reinforcement in some structural concrete, with fibers or other materials.
Concrete emissions can also be reduced by lengthening the useful life of concrete as well — through “self-maintaining” or “self-healing” technologies that reduce maintenance. For example, BacillaFilla is an “engineered microbial glue” that can repair cracks in concrete. The microbes are grown in a bioreactor. After they are applied with a spray, the microbes quickly bind and come with a kill switch so the “germination process may be terminated.”
And then there’s bendable concrete, which is “far less brittle than conventional concrete.” While bendable concrete does form micro-cracks if bent too far, it can “self heal in the presence of air and water.”
In the minerals section, Brownell sees the need to reduce carbon dioxide emissions from the brick industry, which spews out high amounts of black carbon. One way to do that is growing bricks via biochemical processes. Mason, a company out of North Carolina, seeks to do this with BioBrick, which uses bacteria to generate bricks out of sand or another aggregate.
Another fascinating application — Stone Spray, a sort of 3D printer that “collects direct and sand located on sites and mixes them with a binder ingredient.” The vision of nearly-instantaneously printing a structure using nearby materials is awe-inspiring. The technology is in very early stages, and there would be limitations — the load-bearing capabilities of nearby materials would determine the capacity of the structure.
Over the past 500 years, some 4.45 billion acres of forest have been cleared. If the planet keeps going at the rate it has been, we will lose the world’s rainforests in a century. “This resource crisis suggests that forests must be preserved as much as possible.” To slow or stop deforestation, Brownell offers up some novel technologies, such as NewsPaperWood, a Dutch product, that is made out of recycled newspaper and is gorgeous.
In the paints and coatings section, we learn about the potential of next-generation surfaces with coating technologies that enable “light harvesting, electricity production, and structural monitoring.” One brilliant example is the photo-luminescent paint found in the Dutch Smart Highway Project. A team from Studio Roosegaarde and Heijmans created a test bed with photo-luminescent strips that “absorb daylight and emit light during the evening for up to eight hours.” Think of the cost savings for lighting and the creative opportunities.
A related idea in the lighting section: A team of researchers at the University of Wisconsin harnessed genetically-modified E.coli bacteria, algae, and protists to create a biolumenescent light source that will run on sunlight and its own waste. Still in early development, the bulb designers face challenges in making it reliable, Brownell argues.
And there’s also Starlight Avatar, a strange plant that gives off light. Its chloroplast gene has been genetically modified with elements of marine bacteria. Bioglow, the firm behind this new organism, wants to “create foilage that can double as low-energy light sources.” The plant, which Brownell thinks could be used alongside paths for nighttime navigation, is ready for the market and available in the U.S. Whether there is a future market for glow-in-the-dark plants is unknown.
Now these new materials need to be scaled up. In particular, the planet is way past due more efficient and longer-lasting concrete.
In a national survey of likely voters, there was widespread support for reforming the National Flood Insurance Program (NFIP), which some 22,000 communities, covering more than 5 million homes, rely on for basic flood insurance. Of those polled by the Pew Charitable Trusts, some 53 percent said they had been impacted by flooding — either their home or a family member’s, or their place of work, or their community’s infrastructure had been damaged.
In a briefing, Laura Lightbody, project director for flood prepared communities at the Pew Charitable Trusts, said flooding is the “most common and costly natural disaster.” She explained how since 1980, the number of major flood events per year has only increased, and more now cause $1 billion in damages. In total since 1980, flooding has caused more than $260 billion in damages to homes and infrastructure.
Furthermore, according to the U.S. National Climate Assessment, “the risks from future floods are significant, given expanded development in coastal areas and floodplains, unabated urbanization, land-use changes, and human-induced climate change.”
After Hurricane Katrina and then later Sandy, NFIP fell into $25 billion in debt. NFIP, which is run by the Federal Emergency Management Agency (FEMA), is up for re-authorization on Capitol Hill. There are new calls to reform the program, as flooding damages will only increase with climate change.
The U.S. Government Accountability Office (GAO) considers NFIP a “high-risk program” because it’s essentially financially unsustainable. While Congress passed the Biggert-Waters Act in 2011 to “help strengthen the financial solvency of the program, including phasing out almost all discounted insurance premiums (for example, subsidized premiums),” just three years later, it enacted the Homeowner Flood Insurance Affordability Act of 2014 (HFIAA), which reinstated “certain premium subsidies and slowed down certain premium rate increases that had been included in the Biggert-Waters Act.”
The GAO writes: “Aspects of HFIAA were intended to address affordability concerns for certain property owners, but may also increase NFIP’s long-term financial burden on taxpayers.” As NFIP subsidizes communities at high risk of flooding and, in turn, incurs losses, it then borrows from the U.S. Treasury, passing the costs elsewhere.
Some critics of the current subsidized approach argues it encourages development in vulnerable areas. Others argue homes affected by continuous flooding are more often those of the poor and elderly, so raising federal insurance rates too high could mean forcing out whole swaths of communities. And still others argue FEMA, which designates the flood maps that NFIP bases its rates on, has re-mapped higher-risk areas as low-risk to avoid community backlash, but has in turn created more risk because people think they are living in a low-risk area.
Pew Charitable Trusts commissioned Bill McInturff and Lori Weigel with Public Opinion Strategies to poll a representative sample of some 1,000 voters, and found support for the following reforms:
81 percent of likely voters support a “single, national standard to ensure that potential home buyers are aware of whether or not a property has flooded repeatedly, which could mean being required to purchase flood insurance.” Currently, there is no such national standard. But Weigel indicated there is precedent for one: homeowners are now required to let potential home buyers know about higher risks of lead paint in older homes.
82 percent are for requiring the federal government to only build resilient infrastructure in flood-prone areas. Any new or rebuilt infrastructure located in a flood zone should be constructed to better withstand damage. Some 86 percent of those in coastal communities “supported building to a higher, more resilient standard,” said Weigel. Overall, there is widespread support for “flood-ready infrastructure,” which “makes sense to people.”
75 percent would like to relocate homeowners in homes that continuously flood from high-risk areas in order to restore those areas as natural buffers, such as wildlife preserves, beaches, or recreation areas. FEMA would offer these homeowners in those high-risk areas the value of their home at pre-flood rates, so they could purchase a new home in a safer area. FEMA then would work with states and localities to play a role in designating areas for green infrastructure.
64 percent back the idea of requiring communities with more than 50 homes that have continuously flooded to “improve drainage, protect wetlands,” or otherwise prevent flood damage. If they don’t make these improvements, the amount the whole community would pay for insurance would go up. This proposal seems to support using landscape-based solutions to reduce the impacts of persistent flooding, where possible.
Meanwhile, President Trump’s budget blueprint calls for reducing funds for FEMA, which oversees NFIP, by 11 percent. The New York Times reports: “At FEMA, potential cuts would target for reduction an array of grants to state and local governments that have helped fund the development of emergency preparedness and response plans for natural disasters and terrorism-related events.” No word in the blueprint for resilient design funds distributed by the department of housing and urban development (HUD).