As the City of Cape Town has just implemented water rationing, this media release informs why we need need to maintain resilient urban landscapes and gardens.
MEDIA RELEASE BACKGROUND:
The water crisis is a major cause for concern and poses a serious threat to some businesses and people’s livelihoods.
On the positive side it has raised public awareness about the value of water, and highlighted the bad practice of using potable water for irrigation.
A workshop was held in August called ‘Water restrictions as an agent of positive change: how to create a resilient green industry’, attended by landscape architects, contractors, growers, compost and irrigation suppliers, retailers and others. One of the issues identified was the urgent need to educate people about the importance of the urban ecosystem and clear up confusion about the use of borehole water. Here is a communication from the newly formed Cape Resilient Landscaping Forum:
MEDIA RELEASE, FOR IMMEDIATE RELEASE – OCTOBER 2017
GARDENS ARE IMPORTANT
ALL green areas – whether planted landscapes, wild areas, or a road verge with weeds – contribute to the urban ecosystem. They are vital to our well-being: green areas produce air for us to breathe, they filter pollution, absorb storm water and reduce flooding, purify water and maintain a pleasant temperature. Without sufficient planted areas and infiltration – due to the many tarred and paved areas, and reflective surfaces – the city heats up. This is known as the urban heat island effect: pollution levels rise and our quality of life decreases. On summer days, especially when there is no wind, the raised temperature is already evident in the City Bowl, which is a few degrees hotter than the suburbs.
Gardens form an important part of the urban ecosystem and are not a luxury: they are a necessity. Green areas provide habitat for wildlife and are good for our well-being. Please do not feel guilty about gardening! We encourage anyone with access to alternative water sources, such as borehole or grey water, to use it responsibly to help maintain the urban ecosystem. Furthermore help spread awareness of its value and the importance of permeable surfaces for infiltration of rain. This will make a positive difference
Some simple ways you can help preserve the urban ecosystem:
For more information on resilient landscaping and an educational quizz ‘How water-wise are you?’ please visit https://resilientlandscaping.wordpress.com/
Text by Marijke Honig
A current proposal by architect Michael Maltzan Michael Maltzan Envisions the Future of LA’s Infrastructure in Archinect showing copious planting overlaid on the 134 freeway in Los Angeles illustrates what has been a trend with architects c0-operating with engineers , in this case ARUP, to envision what infrastructural interventions in the urban fabric might become in terms of making more use of them and reducing their ecological footprint through green building, carbon reduction interventions and by covering them in photoshop planting, led me to these thoughts that are here combined with excerpts from a recent conference paper I gave at the ILASA Conference 2016 in Pretoria:
View from above of Michael Maltzan’s proposed Arroyo Seco bridge overlay. Image: Michael Maltzan Architecture
With impressive design diagrams and pictorial renderings the viewer is challenged to engage with a seeming reality that ignores or subsumes most of the actors emergent realities that these behemoths that they are trying to camouflage, represent: The unsustainable and incoherent consumerism that underpins the way engineering and architectural solutions generally ignore the real environmental pickle that cities are in:
In a lecture at the Harvard University Graduate School of Design, Bruno Latour posed the following question:
“When we ponder how the global world could be made habitable – a question especially important for architects and designers – we now mean habitable for billions of humans and trillions of other creatures that no longer form a nature or, of course, a society, but rather, to use my term, a possible collective… But why has the world been made uninhabitable in the first place? More precisely, why has it not been conceived as if the question of its habitability was the only question worth asking? I am more and more convinced that the answer lies in this extremely short formula: lack of space” (Latour, B. 2009. Spheres and Networks: Two Ways to Reinterpret Globalization, Harvard Design Magazine Spring/Summer, 30 pp. 138-144, ).
Maybe this lack of space is why we need to rethink how we live together in the world. As human actors that have so dramatically altered the world, it is said that we have entered the Anthropocene. Latour continues by answering the question posed above:
“As is now well known, the notion of environment began to occupy public consciousness precisely when it was realized that no human action could count on an outside environment anymore: There is no reserve outside which the unwanted consequences of our collective actions could be allowed to linger and disappear from view. Literally there is no outside, no décharge where we could discharge the refuse of our activity” (Latour 2009 p.3).
It is now widely accepted that cities are the primary source of this problem. With more than 50% of the world’s population being urbanised, cities must become resilient in the face of the uncertainties of climate, economy and politics. Various attempts have been made to quantify the resource imbalances of cities’ consumption and waste in the form of: ecological footprints , urban metabolism and urban political ecology . These quantifications are needed so that the extent of the problems become visible. Research may lead to solutions to limit ongoing damage to the environment and may also redress this imbalance by making cities more sustainable and resilient for the survival of all their occupants, human and non-human, both now and in the future.
The smart cities and engineered solutions of architects and engineers fall far short of this goal in their version of “greenscaping” with aesthetically beautiful structures in verdant “nature” with scattered people looking on in wonder at their grand creations.
Maltzan describes his proposal
“Well, the proposal for the 134 freeway, the reason I got extremely excited about the 134 is the piece of infrastructure that we would take on, it could carry so many different pieces of the larger puzzle—not only in how you change infrastructure’s role in the city but how you change all of the pieces of the environmental portfolio of benefit. In our proposal, we’re dealing with sounds, lessening the negative acoustic impacts that extend way beyond the freeway. We’re talking about miles of effect that any piece of the freeway has because of how far sound travels. We were looking at a collection of water because It’s a little like a menu: you can pick and choose which pieces you useyou have a significant amount of acreage that the top of the bridge or any piece of the highway creates. We were looking at solar and electricity generation for exactly the same reason: it’s very difficult to find large places to put solar farms in a dense urban environment. And one of the most underutilized pieces of land literally are the air rights over any of the highways, whether they’re elevated or sunken or a bridge. And then the greening of the sides of the bridge to work from an environmental standpoint, and just aesthetically for the visual environment of where that bridge goes through. And then finally the catalytic roof that we’re proposing, that takes the emissions from the cars and converts it, because of the way UV reacts to these titanium dioxide crates, and that acts as a catalytic converter.”
While I am sure that their intentions are laudable and their goal is to stimulate large scale public works to counter the past and present environmental and social crisis, it is unlikely that the results of their visions will improve anyone except a select fews lives into city.
“All of these pieces don’t have to be in play for every mile of the highway all combined. It’s a little like a menu: you can pick and choose which pieces you use or you employ depending on what the different characteristics of the freeway are, and if it’s elevated or sunken down or at grade. I think that if you begin to take this and other ideas that could be added to the laundry list, and started to look at the highway network as a real positive and begin to retrofit pieces of it (especially when it goes through and affects different neighborhoods), I think it could be one of the largest transformative urban projects of any city, for any place on the planet.
CalTrans used to dream at that scale. The highways, when they were being built, coming out of post-World War II, were seen as one of the most progressive civic governmental projects that was being done any place on the planet. There were all these positive things that were meant to come from that. And I think it’s possible for an agency like CalTrans to reinvigorate the benefit of the highways. I think they’re going to be under more and more pressure to do that, especially as you start looking at the realities of autonomous cars and other means of transportation. That’s going to start to minimize or reduce traffic on the freeways, or at least the traffic footprint. I think it’s going to open up more and more space for the highways to perform in a very different way.”
The proposal, although on grand scale and while attacking many problems of the inefficient metabolism of cites, largely ignores the underlying causes of this problem: the unsustainable consumerism that architects, engineers and city planners are dependent on for their livelihood – yes folks we have created the problem, through our designs, but designs alone, however smart they are, will not be enough to solve these problems
Overcoming these limitations requires a rethinking of the current development design process both by the relevant authorities, bureaucracies and by the design professions, the two entities who appear to be in cahoots in this process and who benefit the most by the exclusion of significant others from participating in the development agenda. They, the authorities and design professionals, have in, Latour’s terminology, “black-boxed” this process i.e. hidden its working from view and any attempts by politicians or others to disentangle it or make its workings transparent seem doomed to failure . Some local examples of how this process results in urban “white elephants” in our local South African context are the Cape Town Stadium and Green Point Urban Park, built for the Soccer World Cup 2010, the Cape Town BRT system and the Gautrain, all of which are in my opinion examples of vested interests gaining control of huge public budgets to facilitate their own economic or political agendas. While admitting that the large-scale improvements in public spaces related to the stadiums generated an awareness of the importance of public space improvement and management, Edgar Pieterse head of the African Centre for Cities criticises the results of these public space enhancements that were carried out in this process, as not having achieved the potential they might have. He writes;
“It [the design of the public spaces] remains predominately an imaginary infused with middle class café culture expectations, replete with Lavazza cappuccinos and generous pedestrian orientated pavements. To be sure these are elements that greatly enhance the public realm but at the same time reinforce the dramatic bifurcation of public life for the rich and poor.” (Pieterse 2012 ).
I believe that a political engagement is required to ignite a renewed interest in re-imaging the roles of the built environments’ participants, ecological environmentalists, social activists and those seeking a future for themselves and their offspring. It seems we should change from thinking about ourselves alone and think rather, for everyone as a whole, thereby supporting this process of change to more equitable and liveable settlements and cities. This applies especially to the “have-nots” who, if not catered for, will topple the entire structure with their neediness, frightening the “haves” with their greediness.
Pieterse suggests that in order to realise more dynamic and original public spaces, we need a more inclusive approach, one that encompasses and incorporates more of who we really are as a South African public:
“….such sensibility calls for a [landscape?] architectural agenda, design approach, urban aesthetic and built fabric that opens up opportunities for frank engagements across lines of difference and privilege in order to induce the necessary discomfort and untidiness that can lead to the thorny conversations about who we are, and how we represent ourselves in space and where we may be going as cities and distinctive cultures” (Pieterse 2012 p.87).
The situation that ~Pieterse criticizes in the context of the South Africa is equally relevant to LA as was highlighted at the ILASA conference by landscape architect Astrid Sykes from Mia Lehrer Associates who are based in LA right next toto the river, in presenting their work of the last 20 years on the LA River and a 2007 study done by a large multidisciplinary team for the city of Los Angeles on the future of the river that MLA were part of. While very positive in achieving consultation and buy-in from residents and the Mayor, it seems that this has been subverted by the City now 8 years later in appointing Frank Gehry’s office to do a project on the future of the river that teemingly ignores the previous work and as yet shows no signs of the public participation and co-design the earlier project was tasked with. It remains to be seen if this is an extension earlier work or more “green sky” City Brand building that Gehry is famous for with his Bilboa Effect.
ARMY CORPS APPROVES $1.3-BILLION LOS ANGELES RIVER RESTORATION PROPOSAL
In the same newsletter of Archinect that the Michael Maltzan project featured above comes from is a post Archinect presents Next Up: The L.A. River, at the A+D Museum on Saturday, October 29! Quoting from the newsletter
“For the latest installment of Archinect’s live podcasting series, Next Up, we’re focusing on the L.A. River, and the wide swath of urbanist concerns within its ongoing master planning efforts.
It could be the project that makes, or breaks, Los Angeles. With a complex historical legacy and an often-misunderstood ecology, the L.A. River’s 51-mile stretch is at once a huge urban opportunity, and to many, an even bigger eyesore. Thirty years ago, nonprofit Friends of the Los Angeles River was founded to protect and advocate for the river, and shortly after, the City of L.A. began looking at ways to take better advantage of the immense resource. Since then, many more communities and stakeholders have joined the conversation, raising concerns of ecology, sustainability, gentrification, public space, affordable housing, social equity—a wealth of complexities that testifies to what a lightning rod of urbanist discourse the River has become.
While conversations about the L.A. River’s future have been percolating for decades, not until only a few years ago did the plans become a divisive topic for the general public—in no small part due to the appointment of Frank Gehry’s office as a leader in the city’s master planning initiative. Reporting on the public’s first peek at the firm’s plans, Christopher Hawthorne, architecture critic for the Los Angeles Times, wrote, “as the river takes on new shades of economic and political meaning—becoming a magnet for attention and investment after decades of near invisibility—the race to reimagine it is growing more crowded.”
This engagement with the physical infrastructure, social dynamics and politics of the city might seem far from Landscape Architectures usual verdant concerns. To paraphrase the words of Brenner, Latour, Pieterse and Swyngedouw, “everything is political now” and if we wish our discipline to survive in this sea of change, we must become political and design and proselytize our own future place in this new cyborg or assemblage. Research is needed on how to create a transdisciplinary environment that can facilitate higher levels of engagement, participation and co-learning by politicians, publics, professionals and authorities alike, and is something that seems to be lacking in much of the current design process.
From the examples quoted above, it seems that large scale infrastructure is the very place to focus this engagement and to get out of the office, away from the computer and to get involved in a river, freeway proposal or public space project near you now!
With my apologies to Michael Maltzan Architecture, Frank Gehry and ARUP .
19 October 2016
Excavation is usually a bane for real estate developers. To make way for new buildings, truckloads of excavated waste are removed from site in a noisy, time-consuming and gas-guzzling process. Exploring a more sustainable solution, the California-based company Watershed Materials have developed an onsite pop-up plant which repurposes excavated material right at the job site to create concrete masonry units (CMUs) used in the development. By eliminating truck traffic, reusing waste and reducing imported materials, the result is a win for the environment.
The pop-up plant itself works by applying ultra-high compression to loose excavation spoils, transforming it into a sustainable CMU. The pressure turns the mineral grains into a sort of sedimentary rock, mimicking the natural geological process of lithification. This unique manufacturing technology is the brainchild of Watershed Materials, who previously developed the compression technique in order to reduce the amount of cement used in concrete blocks by 50%.
As the founder of the sustainable building materials startup David Easton points out: “There’s absolutely nothing new about building masonry structures from local materials. Some of the oldest and best-known architecture in the world has been constructed from stone and clay sourced directly on site.” But according to Easton, “what is new and absolutely groundbreaking is that with upgraded technology and improved material science, a construction waste product the developer had to pay to dispose of can now become an asset and provides environmental benefits as well.”
The pop-up plant was born when Naomi Porat, development manager of Alpha Group and part of the team working on the Kirkham Project, approached the startup to bring their technology straight to the construction site. The Kirkham Project is an urban infill redevelopment in San Francisco spanning across 445 new housing units, community plazas and gardens. While addressing the city’s need for additional housing, neighbors expressed concern over construction traffic, making it the perfect place to explore this onsite approach.
A very insightful prediction of a future thats almost arrived but is just not evenly distributed yet, if even half of this turns out to be true, then the design of cites and their interstitial networks will be radically changed – and its not long from now – I can’t get my head around what all the extra people will do, but it certainly does not look good of the “workers” APRIL 3, 2016 BY
A recent trip to the tax attorney’s office put me in close proximity to a fellow client as we waited. This guy was one of the lead developers of autonomous vehicles so I picked his brain for a while. He said his company is on track to have products on the road in four or five years. Here’s a little heads up for those of you who think you know how driver-less cars will play out in the culture and economy.
The first commercial adopters of this technology (other than the military) will be fleets of long haul trucks. The big box retailers have already calculated the savings on labor and fuel efficiency as well as just-in-time delivery optimization with vehicles that aren’t burdened by humans.
Uber and other taxi services have already announced their desire to convert to driverless cars in an attempt to improve service and lower costs. Car sharing services may convert to the on demand driverless taxi model as well. The U-Haul folks will eventually morph with the storage pod pick up and delivery services that are already in operation.
Municipal governments hemorrhaging cash for salaries, health insurance, and pension costs will find it irresistible to phase out humans for sanitation vehicles. When I was a kid there were three men (and they were, in fact, always men) on each truck. Today there’s one person with a video camera and a robotic arm collecting the trash. Soon the truck and the robot arm won’t need a human at all. We can expect the same trajectory for mail carriers, utility meter readers, and other such activities.
City buses will eventually see the end of human drivers, particularly as dedicated bus lanes and BRT come to dominate the surviving transit systems. In many suburban locations public buses may cease to exist at all due to loss of funding and competition from decentralized on demand services
Even ambulances and fire trucks can be made more cost efficient if drivers are eliminated. The real value of humans is in their skill as EMS workers and firefighters rather than drivers. There’s already a well established precedent for existing unionized workers to accept such innovation in order to preserve their positions and benefits at the expense of future hires.
You need look no farther than the fully digitized and mechanized toll both or parking garage to see how this is going to play out over time. The end result of all this is that some highly skilled workers are going to make lots of money in innovative technologies while large numbers of less educated people are going to be made redundant.
For those of you who expect to be sitting in your own personal car being whisked around in effortless comfort and privacy as you commute to distant suburban locations…Not quite. The true promise of autonomous vehicles isn’t about you. It’s about the larger institutions that are relentlessly squeezing costs out of the system and optimizing expensive existing infrastructure. Aging highways will be maintained by charging for their use on a mile-by-mile pay-per-view basis. Traffic congestion will be solved by having more people ride in fewer vehicles. The rich will have stylish robotic SUV chauffeurs. Everyone else will be climbing inside a fully loaded eight or twelve passenger minivan bound for the office park. And in the future you will choose this voluntarily based on price.
Here’s something else to consider. Insurance companies will become more and more influential players in the culture and economy. A few insurers are already offering customers a discount for having their cars chipped and monitored. Sooner rather than later auto coverage will be based on how well and how often a human drives. In the not-too-distant future the chips and monitoring may not be entirely negotiable unless you’re willing to pay a great deal extra for the privilege of opting out. You may think you’re a good driver, but you may quickly and expensively be informed otherwise by the authorities. That’s going to pull a lot of people off the road, especially when the gooey details of your swerving and speeding are cross referenced with local law enforcement. But the cops won’t necessarily be in squad cars. They’ll be the cars themselves. That’s coming too. And sooner than you think. Brace yourself.
Yes! Brace yourself – Here comes robocop!!
Sungula Nkabinde on Moneyweb Today :
“Proposed revisions to South Africa’s water pricing strategy are as broad as they are complex, but what is clear is that water will become significantly more expensive in the future.
The Department of Water and Sanitation (DWAS) has gazetted a draft of the revised water pricing strategy, which outlines a theoretical framework that would engender a fully functioning water eco system. The 2013 document has led the discussion on how South Africa can reduce the financial burden on municipalities, which are required by law to provide water to those who cannot afford to pay for it, by transferring the full cost of delivering water services onto users. They will incur a raft of charges that will see water pricing reflect the level of water scarcity in the country.
Domestic and commercial users will pay for charges related to planning, capital costs, operation and maintenance, depreciation, and future infrastructure build on government water schemes. A new polluter pays principle will also be imposed to ensure users discharging water containing waste into a water resource or onto land pay an additional amount.
According to the DWAS, South Africa ranks as one of the 30 driest countries in the world with an average rainfall of about 40% less than the annual world average rainfall.
Even though the implications could potentially be disastrous for an already struggling economy, the consequences of not the addressing the water security problem could be worse. The revised pricing strategy seeks to incentivise more efficient use of water, and ensure the much needed upgrade to the country’s water infrastructure is properly funded.
Municipalities struggling with poor billing systems, significant water leakage and high rates of non-revenue water (water provided for which no income is received) are a big part of the reason why there significant capital is required to resolve the water crisis in South Africa.
Sanlam economist Arthur Kamp says it’s not possible to give a definitive, or even a ball-park figure of how much the cost of water is going to increase by, saying price structures are going to be quite complicated because it is going to be a hybrid model. There will be a wide range of charges that will be determined on a national level, other times sectoral level.
Says Kamp: “What (the draft revised water pricing strategy) does is it gives one the flavour of what they’re trying to achieve. There is a lot of infrastructure coming and we can’t afford it so the user is going to pay. And I don’t think anybody is going to dispute that water is a scarce resource and that tariffs need to reflect that”.
While many are sceptical of the idea that we can use the complexity of natural systems to design man-made systems , here is evidence that the process can in fact provide valuable design inspirations and alternative strategies . From the Dirt by Jared Green
“Biomimicry is about learning from nature to inspire design solutions for human problems,” said Gretchen Hooker with the Biomimicry Institute at SXSW Eco in Austin, Texas. To enable the spread of these exciting solutions, Hooker, along with Cas Smith, Terrapin Bright Green, and Marjan Eggermont, Zygote Quarterly (ZQ), gave a tour of some of the best resources available for designers and engineers of all stripes:
Hooker walked us through AskNature.org, a web site with thousands of biomimicry strategies, set up by the Biomimicry Institute. The site organizes biological information by function. “Everything nature does fits into a function. And these functions enable us to connect biology to design.”
AskNature first organizes strategies into broad functions and then zooms down into the specific. For example, a user could click on the broad function group, “Get / Store / Distribute Resources,” and then navigate to “Capture, Absorb, and Filter,” and then select “Liquids,” which has 52 strategies. One such strategy describes how the nasal surfaces of camels help these desert animals retain water. Another looks at how the horny devil, a desert lizard, uses its grooves to gather water from the atmosphere. There are just as many plant-derived strategies as there are animal ones. One such strategy looks at how the arrangement of epiphytes’ leavesaids in water collection (see image above).
All of these strategies are written in a non-technical way for a general audience. Hooker said they have selected the most “salient examples, backed with credible research citations.” Users can then go explore the citations and pull out excerpts.
Tapping into Nature
Terrapin Bright Green, a sustainable design consultancy, produced Tapping into Nature, a comprehensive online report covering the world of biomimetic design, which includes an amazing interactive graph. Cas Smith, a biological engineer, explained that the report and graph seek to “uncover the landscape of biomimetic innovation, with a roadmap that shows designs and their their stage of development: concept, prototype, development, or in the marketplace.”
“Biomimetic design is now found in almost all industries — power generation, electronics, buildings.” But to make things easier, Terrapin organizes the design strategies into the following sections: water, materials, energy conservation and storage, optics & photonics, thermal regulation, fluid dynamics, data & computing, and systems.
Using the graph, Smith picked out one story: the firm Blue Planet, which is mimicking the bio-mineralization processes of coral reefs, which pull carbon dioxide out of the water to create their unique structures, to create a new type of carbon-based building material. The firm is also creating pigments and powders. Another highlight: early exploration of termite humidity damping devices. Termites create massive mounds, mostly underground, which are equal in scale to a skyscraper for us. Within the mound, temperature and humidity levels are tightly controlled so they can grow the fungi they live on. In some of the mound’s subterranean rooms and chambers are bright yellow objects about the size of a fist. These structures are termite-created sponges that actually pull water from the air. Smith related to this to HVAC systems in human buildings, and how new systems could be created to remove humidity with giant sponges in a more energy efficient way.
Smith said the process of creating biomimetic innovations is similar to that of a typical innovation development process. “There’s just the added layer up front.” While there are risks in any process, biomimetic designs, he argued, will be the source of “breakthrough products for solving our problems.” If the designers and engineers creating these new products and processes follow nature, “they can embed sustainability throughout.”
Are we really so self centred that we think we need only design for ourselves – yes to seems we are – so when we design urban futures, we are supposed to consult with its occupants – so who will speak for the birds, foxes and coyotes?
Paul Downton in a post on the Nature of Cities contend we need rules that include natural systems as having their own needs and we must take into account and should have their own rights
‘Alive rather than inert’, Christie Walk in Adelaide, South Australia is a downtown ecocity development in which ‘a profusion of sprouting, breathing, photosynthesising, living things surround and entwine human dwellings’. Image: Paul Downton
Cities are quintessentially human constructions, so it’s hardly surprising that reasons given for having ‘more nature in cities’ are almost invariably anthropocentric (think ‘nature-deficit disorder’ or biophilia). These reasons are typically to do with improving the quality of life for people, or even just their real estate values, but the bottom line for promoting urban nature is more profound; it is about human survival—without healthy natural environments our species cannot survive and cities make or break the natural environment. If cities fail to embrace nature in a demonstrably positive and sustaining way there can be little hope for the environment outside the city walls. Our reasons for valuing nature in cities needs to move beyond the ‘selfie’ view that puts a bit of greenery in the frame of urban portraiture and beyond the very reasonable proposition that integrating nature in our cities is good for livability, resilience, sustainability and human life generally. We need to simply accept that nature has needs of its own, and those needs may or may not be of benefit to human strands in the web of life.
This partly parallels ways of seeing the world found in a number of cultural forms, like Buddhism and Animism; it is close to the Daoist tradition in its acceptance of the natural world as ‘a self-generating, complex arrangement of elements that are continuously changing and interacting’ in which humans are a crucial component but one that should ‘follow the flow of nature’s rhythms’. It is specifically not about an enchanted view of nature and it is not about the worship of nature, not least because we are ultimately part of nature and any degree of self-reverence is dangerous.
No, it’s simply accepting that for natural systems to function certain requirements have to be met and understanding that conditions and pre-conditions for the successful operation of biological processes are set by the nature of the systems and not by the predilections of the human animal. Where human activities affect those systems there are identifiable areas of contact and interaction where we need clear indications as to how to allow or support natural system (ecosystem) function.
Responsive it may be, but Nature does not negotiate
Nature is fractal. Each part of it is a microcosm of the larger whole. An urbanism that gave priority to the needs of nature and the requirements of non-human species would itself need to be fractal and support and nurture the essential functions of natural systems. To some degree it would need to be codified, just as we codify the expectations we have of our artificial human habitat, and that means establishing appropriate design guidelines, rules and regulations. If this agenda is to be taken seriously (and why shouldn’t it?), every city and town on Earth will need to develop such guidelines—to be acted upon as a result of both sensible persuasion (through the political process) and as a response to non-negotiable demands (of ecological necessity). Nature may be astonishingly responsive and receptive, but it does not negotiate
The proposal for structural new protection of Boston – by Thetis SpA, Proap – João Nunes prize winning entry in the city’s competition– against coastal flooding turns a safety precaution into an opportunity to create a multifaceted ecology feature
This article was originally published, feature-lenght, in the Green special report, Domus 994, September 2015
The focus of our competition entry “Total Resilient Approach” is based on the redesign of Morrissey Boulevard, a strategy that works on local and territorial levels.
Thetis SpA, Proap – João Nunes, Boston Living with Waters. Top: preliminary sketch showing waterways and the grid of the built environment. Above: site plan of the project area
Operating on different scales within a single ecological network, the protection plan can be implemented over time and is therefore adaptable to climate changes. The Boston Bay is destined to undergo rapid changes due to rising sea levels. The defence proposals afford an opportunity to speed up landscape transformations with a multidisciplinary approach. A long-term element of our project for the Bay is the rehabilitation of its ecosystems in order to protect the coastline by means of sea-grass meadows, oyster barriers and dunes, and improve biodiversity by enhancing self-adaptive systems such as salt marshes.
Ditya Gopal reviews a new book on of The New Wild: Why Invasive Species Will Be Nature’s Salvation, by Fred Pearce from The Nature of Cities that will add grits to the dispute between conservationists, landscape architects and the public on what constitutes an acceptable stance to non-native species and invasive aliens and how we view wilderness and wildness along with the age old debate on how nature is constructed.
“The New Wild is an intriguing book that looks at non-native species and nature in new light, challenging popular notions of ‘nativism,’ ‘wild’ and nature’s ‘fragility.’ Although the author, Fred Pearce, has taken on a controversial topic, his sources show that he is not alone as an increasing number of ecologists and scientists are questioning the “good natives, bad aliens,” narrative. As a seasoned journalist with years of experience reporting environmental and development issues, Pearce strengthens his arguments with plenty of examples—most of which he has personally observed. The book critically reviews the vilification of non-native species, common misconceptions in ecosystem restoration, and pitfalls in conventional conservation”
This topic is of particular relevance here in Cape Town which is situated right in the middle one of the worlds ecological hotspots and with its unique vegetation is the site of frequent conflicts between the ruthless eradication of all alien plant species including what many see as valuable urban forests. The position that many of us have is that it is preferable to have the large exotic trees and shrubs in the urban environment for their social, aesthetic and habitat benefits for urban birds and other wildlife than to revert to the natural vegetation of the place (mostly sand veld fynbos or renosterveld, that cannot be recreated in a viable dimension within the fragmented urban fabric, nor do these vegetation types support large trees and human scale environments, most of the large deciduous northern hemisphere tree species are benign and not able to survive as C and are classified as such by the CARA legislation.
“As a unique and extreme form of novel ecosystems, Pearce urges conservationists to see the great potential in urban badlands/brownfields that nurture numerous rare species. The success of brownfields suggests that nature just needs places that are left alone, with little human intervention. Brownfields might not fit the conventional definition of nature, but they have a huge potential for conservation. Pearce quotes the case of the Chernobyl nuclear station as one of the most remarkable brownfields where nature is making a huge comeback, including the return of large mammals, rodents, birds, and so on. Although highly radioactive, Chernobyl is an extreme example of “nature’s salvation and resilience.” He adds, “nature doesn’t care about conservationists’ artificial divide between urban and rural or native and alien species” or pristine and badlands. This is a powerful statement that we, as conservationists, ecologists, and nature enthusiasts, need to bear in mind. Pearce suggests that conservationists should move on from conventional conservation and its two main aims—“saving threatened species” and restoring nature to its pristine state; and adapt to current environmental realities that include changes due to climate change, pollution, habitat loss, and intensive agriculture. Aliens seem to be “rapidly changing from being part of the problem to part of the solution.” And they are the ‘new wild.’
With the onset of climate change, which is giving rise to an increasing number of climate refugees, adopting a zero tolerance approach towards migrants seems problematic. Previous ice ages and extreme climatic events are testament to massive migrations of species and evolutionary changes. As Prof. Chris Thomas of the University of York is quoted, “A narrow preservationist agenda will reduce rather than increase the capacity of nature to respond to the environmental changes that we are inflicting on the world.”
In the last paragraphs, Pearce expresses that there is no harm in intervening to protect certain aspects of nature that we cherish, nor is there harm in defending against “pests, diseases and inconvenient invaders.” But, “we are serving our own desires and not nature’s needs.” Nature might organize differently than we would like it to. “Open up to evolutionary changes. Let go and let nature take its course.” “…Nature never goes back, it always moves on. Alien invasions will not always be convenient for us, but nature will re-wild in its own way. That is the new wild.”
“The New Wild is persuasive, with well-supported arguments that make for a good read. The simple language and case studies make it easy for even a non-ecologist to follow. This book should be a must-read at the university level for future scientists, researchers, and conservationists, to develop an open mind towards non-native species.
As an ecologist who works in cultural landscapes, this book is refreshing. ‘Wild,’ to me, means spontaneous and not domesticated or cultivated. In many big European cities that I have visited, the median strip along roadways, the small patches of green at road junctions and other nooks and crannies in the city are beautifully decorated with colourful flowers—almost nearing perfection. It was only when I moved to Berlin that I noticed something different. It is refreshing to see dandelions and daffodils appear and vanish on their own. There seems to be a deliberate attempt to bring back the urban wild and it seems to be popular. Yes, it differs drastically from my notions of ‘wild’ as a child who grew up reading encyclopedias and watching National Geographic Channel and Discovery Channel. But, there is something magical about seeing what nature has to offer. Many of the spontaneously growing plants, often considered weeds elsewhere, add character to the city. Some are natives, some aliens. It doesn’t matter. To me, these spontaneous species are the new wild.”