Showing posts with label building. Show all posts
Showing posts with label building. Show all posts

05 June 2011

Cohousing Up Close in Colorado

Reposted in full from the Urban Ecology Australia newsletter, May/June 2011

'Cohousing communities exist in northern Europe, Canada, Australia, the UK and elsewhere. There are more than 100 in the US and nearly another hundred being planned. While not officially a cohousing development, Christie Walk follows similar principles and would certainly qualify as one. Recycling, resource sharing, thermal and water efficiency, a strong sense of community, shared spaces and activities, a range ofdwellings, social inclusion, and less emphasis on cars are just some of our common features.

This January I visited two cohousing communities in Colorado. Being midwinter I saw both under a blanket of snow in near freezing temperatures.

Nyland Cohousing is set in farmland a little east of Boulder, and has 135 people (110 adults and 35 kids) in 42 households on a large acreage of former farmland – 42 acres.

The land is partly being revegetated with local grasses, the rest available for organic gardening and farm projects. The houses built in 1992 include duplexes and triplexes and are smaller than average US homes, and the monthly townhouse association fee is lower than normal. Despite the large land available, the homes are grouped close together in lines running eastwest, to maximise southern sun access for heat/light/solar electric power and to make social interaction easy. (A regular developer would surely have placed them all in north-south rows to take in the view of the Rockies!) Cars are kept to the extremities, and ‘pedways’ (pedestrian ways) run between the rows of houses. Handcarts are used to move shopping or large items.

The ‘common house’ (a regular feature of cohousing projects) is a large separate building located among the houses – with a commercial kitchen and meeting rooms which are used for community meals and functions, and are sometimes hired out. It includes a young kids’ playroom, a teens game room, a laundry room, a craft room, a TV and ping pong room, a gym, a mailroom and two guest rooms (for which there’s a small nightly charge).

River Rock Commons is in the heart of Fort Collins, a town with a name for being ‘green’. Like Boulder, it has about 100,000 population and is set against the ‘front range’ of the Rockies but a little further north. River Rock is the second cohousing community there (the first being Grey Rock Commons), and has slightly less houses and residents than Nyland.

Houses, parking and pedways are similarly arranged to Nyland, and while some houses have a small backyard which they may choose to fence, there is no additional land.

To the north, however, River Rock has an elevated view over the adjacent public park and playing fields to trees flanking the Poudre River a few hundred metres away. At River Rock I was invited to see inside two homes, as well as the common house which was very similar in essence to Nyland’s. I also met more residents there, and immediately felt that they would have slotted into Christie Walk seamlessly, and vice versa, as our guiding principles and general arrangements are essentially similar.

As cohousing is so well established in the US, there are plenty of resources on their websites created by residents who have shared their experiences over the years. Topics like planning, financing and building are well discussed, and there’s a lot of information on things like social arrangements, shared work, pets, consensus decision making and dispute resolution.

The River Rock Manual is a good example of how an individual community works in practice. It welcomes new residents in a friendly and positive way, and explains that everyone is expected to participate in the work and life of the community.

Cleaning the Common House, for example, is done by all households on a rotating basis 3 to 4 times a year (except for under 15s and over 80s), though you can opt out and instead pay $20 per time. And everyone is expected to give at least 2 hours on monthly work days six times a year (they don’t have working bees the other 6 months due to weather).

Interestingly, renters who rent an entire unit take on that household’s community work responsibilities. Renters are also encouraged to participate in all activities to get the full River Rock experience.'

16 April 2011

The Safe House - A Fortress of Sustainable Solitude



This is a classic case of people interpreting 'sustainability' as technofixes at the individual level rather than the cultural shift in how we live that could render such design unnecessary. One wonders what kind of threats are anticipated, and how effective even this would be in the face of large scale upheaval.

Sourced from Inhabitat, 14 April 2011

'Forget the Slomin Shield - if you really want home security, move into the Safe House. We're not talking about a few bars on some windows or heavy duty locks here. The Safe House is a minimalistic home that transforms into an impenetrable concrete cube at the push of a button. Designed by Polish firm KWK Promes, the modern day fortress also features a hybrid heat system (with most of the energy harvested from from renewable sources) as well as passive house strategies. The photo you're looking at right now shows the home in its "secure" state, click through the gallery to see how it looks when it transforms.

Located in a small village on the outskirts of Warsaw, the Safe House is surrounded by a series of thick, movable walls that arm and disarm like an armadillo’s armor. In its daytime state, the eastern and western side walls move apart to the garden. Even in this configuration, the outer walls remain securely shut so that there is no risk of children running into the street while playing in the front yard. When visitors approach the outer gates, they can be admitted, but the side walls come forward to create a buffer zone while the person’s identity is verified.

The walls aren’t the only parts of the home that move. Large shutters create an extra layer of protection over the windows and a drawbridge (talk about going medieval) leads to a roof terrace above the swimming pool. The southern elevation is secured via an airplane hangar style roll-down gate made by a company that normally supplies shipyards. An added plus to the southern facade is that it doubles as a gigantic movie projection screen.

The house was built with security in mind but sustainability played a large part too. “Wide glazings behind the movable walls let the building acquire energy during the day (winter) or prevent the sun’s heat from going into the house (summer),” explains KWK Promes. “At night, when the house is closed, the thick outer layer helps the building to accumulate the gained energy. Such a solution together with the hybrid heat system (most of the energy is gained from renewable sources – a heat pump and solar systems supported with gas heating) and mechanical ventilation with heat recovery makes the house become an intelligent passive building.”'

12 April 2011

China's Ghost Cities

Here we are facing peak oil, climate change (cement manufacture being a major contributor), loss of forests - and China is building an estimated ten cities a year, but the government isn't concerned whether people are actually living in them, because it's maintaining economic growth! This is what the UN calls 'uneconomic growth'. Another word would be 'madness'.

Sourced from SBS's Dateline, 24 March 2011


03 April 2011

How To Share A House

I love, love this idea, this ethos - how much easier, kinder - not to mention cheaper - would life be if we created connections and communities this way?

Reposted in full from
Shareable, 14 December 2009

'As a companion to her essays "The Slow Homes Manifesto" and "How to Stop Foreclosure through Homesharing," Janelle Orsi offers this nuts-and-bolts case study in the marriage of two households.

The Cast:

Household 1: Jane, and her devoted companions, Buck and Savannah, both German Shorthair Pointers.

Household 2: Regina and Joel, and their daughters, Melia, age 6, and Naia, age 3.

The Setting:

A tiny town in the remote woods of the Santa Cruz Mountains in California.

The Birth of an Idea:

As a young couple with a child, Regina and Joel were in search of a long-term living arrangement. A major priority was to be able to own, rather than rent, their home. They regretted the possibility of leaving the beautiful Santa Cruz Mountains, but the price of land had skyrocketed. They began to explore the potential for moving elsewhere.

Then along came Jane. Jane owned a beautiful home in the Santa Cruz Mountains, which she helped to build herself. Jane is a professional trainer, facilitator and coach, and she travels often. While she loves living in the woods, and generally prefers to live by herself, she recognized certain disadvantages to “living alone in the middle of nowhere.” When she worked from home, she often felt isolated. When she traveled, it was a challenge to find dog-sitters who were willing to make the trek to her remote home. While she values time and space to be alone, she did yearn for occasional company. Jane had long dreamed of forming a land-sharing community arrangement, but had never been able to simultaneously pull together the right ingredients of land, housing, willing people, and compatible personalities.

Since they lived nearby, Regina and Joel began to house-sit for Jane while she was away. As Jane got to know Regina and Joel, she found that they were pleasant to be around, respectful of Jane and her home, and generally good natured and trustworthy people.

When she heard their reluctant plans to move to Vermont, she proposed a radical solution: "How about building your home on my land?"

Making it Happen:

Jane, Regina, and Joel met to discuss the possibilities. Their options were somewhat limited by the local zoning ordinance, which allowed no more than one house on the property. Their solution: build an addition onto Jane’s home that would allow for the feel of two separate units, while sharing a kitchen in the middle.

Planning was the secret to the success of their arrangement. Jane, Regina, and Joel met frequently over the course of several months, often making meals together to find out how it felt to be together in a shared kitchen. Over these meals, they got to know each other and sorted out the details of the arrangement. They discussed their needs, their expectations, their finances, their preferences for household cleanliness, the architectural design of the addition, and so on. The building process itself took another year. As of the date of this writing, they have been living in the shared house for five years.

What They Share:

The two households share a kitchen, hot-tub, and laundry room, and a handful of items, including tools and kitchenware. The washer, dryer, and many kitchen appliances belonged originally to Jane. However, as those appliances have needed to be repaired or replaced, the two households split the costs 50-50.

The two households have also casually evolved certain sharing routines. For example, Jane and Regina are often in the kitchen at the same time in the morning. Jane sometimes makes extra breakfast for Regina, who is occupied by various morning routines with her children. Other times, she’ll simply butter Regina’s toast when it pops out of the toaster. To Jane, this is a small gesture and takes little effort, but to time-pressed Regina, this means a great deal. At the other end of the day, when Regina or Joel makes dinner for their family, there’s often more than enough to include Jane, who thoroughly appreciates the gift of an effortless meal. They all alert one another if there are extra leftovers to share, an open jar of salsa, and most importantly, a fresh batch of cookies.

In addition, the two households casually collaborate on shopping trips, spurred by the fact that their home is a 40-minute round trip from the nearest grocery store. There is an ongoing shopping tab posted in the kitchen that tracks what each has spent on the other’s groceries. Commonly used items like spices, oils and dish soaps are shared; for these, a loose unspoken arrangement has evolved around who buys what, depending on stores they each frequent. A huge boon for Jane has been Regina and Joel’s willingness to do the Costco and Trader Joe’s shopping—she gets the prices and variety without the overwhelm of actually shopping there.

They have also evolved into a loose division of various household duties. For example, Jane typically manages all the household repairs, and she is “more than happy” to let Regina and Joel manage the household compost.

The Benefits:

For Regina and Joel: An opportunity to live and own a home in a beautiful place at a very reasonable price. Occasional childcare from Jane.

For Jane: Built-in dog care. Less isolation. “Someone to play cards with when we lose power and the rain washes out our roads.”

For Everyone: Shared cookies, the security of having extra people around, pleasant companionship in the kitchen, reduced expenses, pooling of resources to reduce environmental impact, help with shopping, cooking, and other tasks, and relief from certain household duties, such as composing. In addition, by enlarging the existing house, everyone has ended up with a higher property value; this is because the average price-per-square-foot of a 5-bedroom house is higher than that of a 3-bedroom house.

Regina explained: “One of the things that I am most pleased with is the fact that we have been able to simplify our lifestyles through the art of sharing. I feel good knowing that this living arrangement has a much smaller negative impact on our planet than if we all lived in our own separate homes without the benefits of combined appliances, energy, and space.”

Regina noted: “We have created a sense of community in our home. Although small and nowhere near being a village, we do indeed enjoy the fact that we are not all alone in our mountain home. We would be much more limited if we did not have a housemate like Jane with whom to share household chores, expenses, food shopping and preparation, as well as occasional child/dog care. I think that by living more communally, a greater sense of ease is achieved for everyone.”

What Makes it Work?

Personal space. Aside from the shared kitchen, hot tub, and laundry room, all other areas of the house are divided between the two households. Everyone has the ability to retreat to their personal space when they’ve had enough social stimulation. Even the kids understand this; On one occasion when Jane got up to leave the kitchen, Melia (then three years old) asked, “Are you going to retreat now?” Within the kitchen, the need for personal space is also reflected in the fact that each household has their own refrigerator, designed to eliminate any hassles over shelf organization and leftovers (yummy or funky).

A basic attitude of generosity. Jane, Regina, and Joel generally give and share with no strings attached. There is no score card kept on who cooked, who shopped, who waited on the repair man or helped carry heavy items. They each understand that they are benefiting in different ways from the shared arrangement, and thus don’t always expect all things to even out. Jane explains that she thinks things work so well between them all because everyone is focused on the question of “What can I do for you?” instead of, “What’s in it for me?” She explains, “I’d rather take care of what’s important to me and do it as a gift. If I want the sink clean, I clean it. I notice and appreciate when someone else is motivated to clean the stove. As soon as you develop an attitude of ‘he never ________ [e.g. takes out the trash] and she always ________ [e.g. eats my bananas],’ then you are headed down a bad road.”

A few good rules and a lot of good communication. According to Jane, Regina is an “excellent communicator,” who has even taken workshops in Non-Violent Communication. “A key component to our living situation is healthy, clear communication," Regina told me. "I am extremely grateful for the fact that Jane is such a clear communicator. I would strongly recommend some sort of communication class or study group to anyone planning a co-housing situation.” Through her work in facilitation and coaching, Jane herself is a professional communicator. They have all encouraged one another to speak up and consequently everyone feels comfortable voicing their needs and concerns without fear of conflict or defensiveness. As a result, no one has felt the need to have any written household rules. At the same time, a few useful rules have evolved over time, including: 1) You can use my eggs, so long as you don’t take the last two; and 2) No children in the walkway between the stove and the sink.

Planning. By meeting frequently for nearly a year, the three were able to discuss many things in detail and plan even for the unforeseeable. They asked each other questions such as: “What happens if we don’t want to be good friends? Will we have the courage to tell each other when we don’t want to spend time together?” “What happens in the event of one of the ‘3 Ds: death, divorce, or disability, and what would we do in a worst-case scenario?” They also planned the housing design in great deal. For example, using tape on the floor, they simulated a full-sized floor-plan of their kitchen and did a “butt test.” They simulated various kitchen tasks to ensure that one person could be washing dishes, while another was preparing food on the island and they wouldn’t bump into each other. They discovered, for example, that putting the stove at the end of the counter would allow two or three people to stand around the stove at once, if necessary. As Regina noted, “If the majority of details and ideas are sorted out before actually living together, then the transition into co-housing will be much smoother overall.”

Mutual respect, shared values, and other personal qualities that make a difference: Everyone in the two households values protection of the environment; they all generally eat organic foods, strive to reduce/reuse/recycle, and share resources in the spirit of reducing their impact on the planet. Jane confesses that her own standards of cleanliness are likely higher than those of her housemates, but that Regina and Joel have consistently respected this in their shared spaces, even with two young children to clean up after. “They are very thoughtful and have good attention to detail,” she notes.

Jane also appreciates her housemates’ parenting style. “In the middle of a party here, a dear long-time friend who was visiting for the first time announced loudly, ‘Hell has frozen over. Jane is cooking in the kitchen and living with children!’ She’s right—I’m way out of my comfort zone living with kids. And I can do it because of Regina and Joel’s amazing parenting—completely low stress for me to be around.”

Additionally, Jane recognized that Joel and Regina have a solid relationship, which makes them easy to be around and which assures Jane that their shared housing arrangement is unlikely to be torn apart by a divorce. Finally, Jane says it is important that Joel and Regina are primarily her housemates, not close friends, lovers or co-workers. She appreciates the simplicity of that connection. “There are no outside arenas of potential conflict. It’s just about living together,” she says.

Legally Speaking

The legal arrangement between the two households might cause the average lawyer to sweat a little bit. With the exception of a recorded property deed showing their respective ownership percentages, and the joint property tax, mortgage, and insurance bills, there is no other signed document providing the details of the arrangement.

Fortunately, the verbal and unsigned written agreements between the three have been consistently followed, and everyone trusts that they are getting a good deal from the arrangement. They have all agreed on the division of monthly expenses, and sort out most issues and additional expenses as they arise. They have all loosely committed to continue living together for 10 years, after which they will discuss the possibility of selling the whole property all at once.

They all three admit, however, that they should have a Tenancy in Common Agreement drafted at some point, primarily to delineate the rights of all three owners in the event that someone needs to move or sell out before the end of 10 years, or in the event of anything unforeseen that could significantly change their arrangement. However, until and after such agreement is put into writing, Jane explains their arrangement is primarily governed by the law of generosity. '

16 March 2011

Ecocity Economics - An Economics Built on What We Build

Reposted from Ecocities Emerging, March 2011

'...The ongoing economic crisis that began with the unraveling of wildly inflated real estate prices and the Wall Street derivatives bubble in 2007 and the crash into near depression in October of 2008 resulted in trillions of dollars of public bail out money for banks and other institutions around the world. Other banks and businesses collapsed or went bankrupt and many individuals lost their homes and/or their jobs. Talk of recovery and getting back to where we were with continued world economic GDP growth, back to "normal," based on improving stock prices and with a stabilizing of real estate prices in the United States averaging almost 40% less than what they were in 2007 is highly unlikely to be correct. That is because of the high unemployment rates, lost value in retirements, far more expensive costs for education and health insurance than before, cuts in public services from closed swimming pools, parks and libraries, streets wearing out without maintenance, immense debts and deficits in all but two state governments in the United States and hundreds of cities and so on and on. Our police force here in Oakland, California where I live, for example, a city with an extraordinarily high murder rate, has had to fire 80 police officers five months ago due to enormous city government deficits. The same is the situation for the State of California where Jerry Brown the new Governor (who was also governor 30 years ago) is cutting deeply into almost all services the state provides and has proposed the elimination of all California Redevelopment Agencies in an effort to balance the budget. But there is a much more profound reason not to expect "full recovery" of the economy if, as almost always implied, that means a return to all those comfortable economic indicators of on-going growth. In this regard there are two big problems: 1.) infinite growth in a finite environment is impossible and 2.) you have to know what to build to thrive and all evidence is that humanity has a very ill-considered and dangerous notion of what to build at this time in history.

Infinite growth is impossible

Our newsletter readers all know that infinite growth in a limited environment is impossible so I’ll mention here, without trying to prove the case, an interesting fact: life depends on energy, 99.97% of which arrives in the thin zone of life on Earth from the sun. Only .025% oozes up from the crust as geothermal energy and the thin slice of .005% comes from tidal energy, cosmic rays, meteor friction with the air and most interestingly I think, residual heat from the originally birth of the planet in accumulating bombardments from asteroids, comets and space dust.

Life, of course, also depends on climate, local or regional soils and/or waters and the interaction between living organisms. Carrying capacity in the case of human presence on Earth has components that multiply one another in a manner similar to that identified by Paul Ehrlich in his famous formula: I = PAT, meaning Impact (on the environment and everything in it) is equal to Population multiplied times Affluence (or consumption) times particular Technology. One technology may be almost totally benign, solar energy for example, and another definitely risky, such as nuclear with its unsolved waste problems and necessity for massive insurance and investment subsidies.

In my opinion Ehrlich is missing the pervasive and powerful role of the built environment or the “land use and infrastructure” pattern our cities, towns and villages embody physically, the anatomy of our cities, towns and villages. Our collective constructed habitat is a gigantic creation at the foundation of human economy and, you might say, a meta-product made up of many other products. The city orders and supports – or confounds – practically all other of our technologies and ways of living in their efficiencies – or inefficiencies. For example, once you build the city designed for the convenience of cars you are stuck for decades with dependence on cars and all their supporting technologies, space and energy demands, climate change and violent accidents. Build a city for people mainly on foot and the technologies that work with that built community include solar electric power plants, bicycles and streetcars and their supporting technologies. I sometimes contract “land use” and “infrastructure” into the one physical thing itself, as “landustructure,” the physical built community itself. Thus I have propose I = PLAT. Coincidentally, “plat” in its common usage means the layout of a set of uses on the land. Impact = Population times the kind of Landustructure they occupy times level of Affluence times particular Technologies.

Presently the “ecological footprint,” a concept that was detailed first in the doctoral dissertation of Mathis Wackernagel working with Bill Rees at the University of British Columbia in 1994, is probably the best measure of human overshoot. Wackernagel as President of Oakland’s Global Footprint Network, with offices also in Zurich and Brussels, keeps track of the worsening degree of overshoot for our whole planet, which at this point is consuming more than 30% more resources than can be utilized and stored by the Earth’s biological systems powered by sun, chlorophyll and soil. In economics terms this might be called using up the planet’s capital while maxing out humanity’s income allotment all at the same time, digging rapidly into the geological energy savings account, the only one that exists. The fossil fuel savings account was accumulated over close to 100 million years during the Carboniferous geological period ending a little less than 300 million years ago. The accumulation was slow – especially relative to the rate at which we are using it up now: at around 500,000 years worth of deposition literally burned up every year. Basically, the biofuels that compete for soil and sun with food and wood, which provides also building materials and paper plus maintains most terrestrial biodiversity, is the only source of energy we can depend on other than direct renewable solar energy and its derivatives, wind and hydropower, and a tiny fraction from geothermal.

To get a sense of the implications of the problem of overshoot in terms of metals and non-metallic minerals, it is instructive to step back and contemplate a powerful image of our situation from the point of view of minerals already mined out of the surface of the earth. The McGraw Hill text book by Fellmann, Getis and Getis, Human Geography – Landscape of Human Activities, Tenth Edition, provides a perspective on that situation that should concern us all.

The extractive industries depend on the exploitation of minerals unevenly distributed in amounts and concentrations determined by past geologic events, not by contemporary market demand. In physically workable and economically usable deposits, minerals constitute only a tiny fraction of the earth’s crust – far less than 1%. That industrialization has proceeded so rapidly and so cheaply is the direct result of an earlier ready availability of rich and accessible deposits of the requisite materials. Economies grew fat by skimming the cream. It has been suggested that should some catastrophe occur to return human cultural levels to a pre-agricultural state, it would be extremely unlikely that humankind ever again could move along the road of industrialization with the resources available for its use. (2008, p. 282)

The fact is that massive quantities of metals and other minerals are in the form people can use, are in circulation right now, in many cases in near 100% pure form. And many of these can be recycled essentially forever. But, the amount per person on average has to be divided by the population of humanity and some is inevitably lost through rust or dispersion to concentrations unrecoverable by any economically available means. As energy resources become more expensive economic availability becomes much more problematic. I call this “the Rust Factor” and it needs to be seen as compounding the problems of “Peak Oil.”

In other words, far from an imminent return to normal growth that politicians and economists are claiming will materialize in a few years if not sooner, what we are more likely to see is better revealed by thinkers who for a long time now have been trying to asses society’s longer term trajectory on the planet. Jonas Salk discussed in his book “Survival of the Wisest” in 1972 the graphing of growth curves representing living organisms in finite environments, including us on Earth.

“S” curve, bell curve, collapse or just permanent downturn?

In broadest terms, Salk compares human impacts on the planet to any living organism living and reproducing in a limited environment with a steady supply of incoming nutrient. A petri dish with a colony of bacteria, for example, starts out with plenty of food per individual bacterium and increases population geometrically as represented by a line on a graph as it reproduces, producing an upwardly accelerating “C” shaped curve. At a certain point resources become more scarce per organism and the environment becomes crowded. It starts filling up with the contamination of the bacteria’s waste. At a certain point the upward “C” shape begins to decelerate in its growth rate and begins to describe an “S” shape. Where the line changes its direction representing accelerating growth to decelerating growth we have the “point of inflection.” The line at that point instead of curving ever more toward the vertical begins to curve to the right and toward the horizontal. Salk suggests that the wise person realizes from an assessment of the major needs and resources of living organisms and the realities of their environment that we need to slow growth before arriving at the point of inflection else we suffer, shall we say, swimming in a crowded pool of scarce food and our own organic and industrial excrement. In theory we could arrive at a high top population in miserable circumstances as the line on the graph takes a horizontal path to the right indefinitely.

In 1972 when his book was published and I had the pleasure of talking with him about it we may well have been at approximately his point of inflection. Obviously we didn’t act as wisely as he might have wanted. It’s one thing for literally billions of people to have been saved from polio with a shot of Salk’s vaccine. It’s quite another for those same to achieve wisdom.

In reality, the “S” curve doesn’t end there in a horizontal trajectory since the steady availability of incoming nutrient – and on the whole Earth 99.97% of that income would be the steady flow of solar energy – may be there, but when maximum population arrives it is not just that the environment is polluted and crowded but that pathologies that began multiplying as the curve approached the top produce conditions in the organisms themselves and in the contaminated soup of their environment such as diseases. And those conditions of “diseases” have their own growth curves and negative cumulative effects that may not kick in until well over the maximum number of our subject organisms are alive and the “S” curve line is topped out and tending toward the horizontal. In the case of us humans, dangerous psychological and social/political reactions are guaranteed as well as actual diseases. This has been historically demonstrated in cases of civilizations that have collapsed throughout history and even prehistory.

But as far as human society is concerned, by far the greatest source of energy in use and which we depend on almost absolutely is not of the steadily arriving solar variety, but fossil fuel reserves topping out sometime right about now. Add that to the delayed action of those independent “diseases” just mentioned that exert their degenerating effect after the ”S” curve tries to top out and move horizontally. Students and Paul Reveres of Peak Oil have been warning us for more than a decade now that peak oil production portends a great deal of dislocation not only by prices rising as oil becomes scarce, as it must sometime as a finite resource, but also because of the degree to which it has permeated our economy in the form of plastics and hundreds of chemicals that turn up in a vast number of products. They suggest a bell curve, rather than an “S” curve, one that rounds over the top and heads down with a rapid drop. Richard Duncan a systems engineer studying Peak Oil has pointed out, however, that peak oil per person was actually passed in 1979 with no dire crisis after that point. Some of the early 2000s peak oil authors expected the beginning of the collapse of absolute quantity of consumption of oil in the 2007-2010 period and perhaps they were right or perhaps society is at a kind of ragged top “plateau” that will slide more slowly away with oil use tapering off more gradually as other energy systems come on line. The only trouble is, other source of energy from the Earth’s surface are either almost as scarce as oil, natural gas in particular, or even worse in terms of climate changing CO2 and pollution levels, coal in particular, or more expensive in terms of energy, technology and clean up needed in procurement, such as shale oil, tar sands and nuclear. The Great Downturn, the Great Recession, the Crash of 2008 or whatever it becomes known as eventually, illustrates that policies (government deregulation on one hand and the personal policies of greed in high investment and speculative circles) and societal factors that are not tracking resources that closely can have immense impacts as well. But perhaps what is important to say at this juncture is simply that even if slow in terms of years the patterns are getting clear in terms of decades and in those time periods our children’s lives are deeply implicated by the slowdown in energy available in a world getting crowded and heating up.

Leaders and the public show few signs we know what to build

It’s not quite that we never ask what to build, it is that we are afraid to look at the question in its fullest implications. Around the world we have no problem in 2011 with looking into building the green building. We can all imagine that – at least for those who are interested. But to inquire into building the right kind of city or town, that affects us all in our neighborhoods, in our everyday transportation situation and in many other aspects of our life styles – that is another thing entirely. I’ll explain this in a little more detail but first I want the reader to look at my chart entitled “The Illustrated Realconomics Chart.”

Studying it you will see solar energy providing almost all the energy available on the planet, both as a flow of arriving energy and as a store in the form of the fossil fuels. The chart shows our dependence on the layer of chlorophyll and soil for making almost all of our useful products, prominently featuring our built environment, as, after all, the built environment is the largest of our creations. You will also see I have placed human economics completely within nature’s economy and have shown the speculators’ economy as a black hole of profit that, whenever economic “bubbles” develop, accrues as gambling winnings for the very few but has zero product or service to the larger economy – and often impoverishes millions of people when the bubble bursts, taking down many unlucky speculators as well.

I have noticed that even high finance economists who deal in derivatives and buy and sell disastrously overpriced subprime mortgages occasionally use the term “the real economy.” Alerted to what it might be and investigating some I concluded they were talking about the economy not of speculative finance that has no physical product or service but the economy that does, the economy of material, energy, strategic thinking and good hard work. Still, that economy may operate as both capitalist and socialist economists have advocated for exploitive drawdown of nature’s resources and thus it is not the real real economics because it is lost in its delusional fantasy of infinite growth and independence from nature. Therefore I’m suggesting constructing an economics that understands that edge between nature’s economics and ours, that thin green and brown line of chlorophyll above and soil below. I’m suggesting we give it a new name to distinguish it even from the human economics seen as the economists’ “real economics” plus “nature’s economics” in their dynamic interrelation – another kind of economics. I’m suggesting “realconomics.”

The Illustrated Realconomics Chart

Economist speak of “real” economics as the economics of productivity, consumption and recycling utilizing Earth’s resources and whatever energy is available to power the system. They do this because often the manipulations of finance and speculation dominates much of economic theory, circulating largely around stock markets and their regulation – or deregulation.

The Realconomics Chart puts forward the idea that there is a natural economics based on the Earth’s minerals and solar energy income translated into useable food and fuel by photosynthesis in plants. Products of photosynthesis are stored in soil fertility, wood, fruits and vegetables and animal protoplasm and some is stored in the Earth’s sediments as fossil fuels.

The human economy taps into the larger natural economy and has its own particular dynamics having to do with resources, invention, capital, labor, planning, interest manipulation, supply of currency, rules of contract and so on.

A subsection of the chart is speculative economics, the economics of physically non-productive investment and return – or betting for win or loss – that may or may not facilitate the larger human economy. The human economy is dependent on the materials and energy flows of the natural economy. And if we can devise an economics that effectively integrates nature’s economics and human economics in one total economics system, I’m proposing calling it “realconomics.” Only if the system includes all crucial parts could it be considered “real,” thus the proposed name.

Chlorophyll in plants creates a thin membrane on the Earth’s surface that transforms solar to chemical energy for practically all organic functions of living things. The chemical residues of the work of this membrane are geologically stored as a one-time supply of energy in the fossil fuels.

To continue with looking at the built environment, when one goes from making buildings more land-conserving and energy-conserving and designed for more positive environmental impact in general, then on to making the city greener, we suddenly get into the issues of changing neighborhoods, confronting automobile dependence, the need to remove buildings if they promote automobile dependence or if they are in the way of restoring ecologically healthy functions such as through opening up small waterways, shorelines, ridgelines and so on. Ultimately the very uncomfortable issue comes up for many people that living in a multi-unit apartment or condominium without a car in a mixed-use center is far healthier in ecological, climate and resource terms than living in a house with a car in a low density residential area. Oddly, living in a house in a high density mixed use neighborhood might be the worst of all since it keeps out many people who could be leading “greener” lives there.

Our leaders and the vast majority, even of climate scientists and environmentalists are averse to looking this problem in the eye. It seems far too daunting but look we must or we simply will not solve the major crises of our times. The Obama Administration in my country doesn’t know what to build. To use an Oakland example again, the Federal Government has funded a “shovel ready” project as part of its economic recovery program to drill a fourth bore through the hills to the east of Oakland and Berkeley – at a cost of $420 million (before cost overrides – who knows what the final figure will be!). This will make four tunnels where there are now three linking the San Francisco Bay Area with the suburbs on the far side of the hills – for cars. This is precisely the wrong time in history to be promoting and serving yet more cars and sprawl development. A half billion dollars could do good instead of damage if it were for ecocity development near an existing rail station or serving development in vitality centers that could be moving toward ecocity design and development.

In simplest terms, we have built a city for cars instead of people. We have done this almost as if we are in automatic, that is, just reacting our way into the future picking up on whatever short-term technological future plops in our laps. Cars have been fun but… Interestingly the world automobile means something that moves (is mobile) on its own (auto). It is automatic in a sense too, just like our reflexive adopting of the automobile with little thought to its implications. The city built for the automobile, we could call the autocity (as compared with the ecocity), meaning not only built for the car but built almost automatically without serious forethought. If you want to know how we got here to climate change, rapid resource depletion, paving farmland and species extinctions, that’s the lion’s share of the explanation.

Even most conscientious promoters of renewable energy, energy conservation, recycling and non-toxics have failed to notice that slice of history, don’t get it. They almost uniformly promote subsidizing electric cars and putting solar electric panels on suburban houses which works to maintain the suburbs we should be moving away from, continues covering farms and killing people and animals in tens of millions of accidents around the world every year. Jobs supporting expansion or perpetuation of the car/sprawl/paving/massively energy consuming autocity shouldn’t be seen as green jobs at all. Their “greenness” is more than nullified by supporting exactly the wrong infrastructure. However if we do know what to build – the ecocity of compact, highly diverse centers from neighborhood centers and district centers to revitalized downtowns as complete small cities in their own right – then we will see people have learned “what to build.” Then we discover we have a much broader definition of “green jobs” which includes the iron worker constructing apartment housing in an area where the preexisting imbalance is toward the commercial, the waitress providing café services, for example, to people who arrive there on foot and so on. Almost any job, in the right location is a green job, whereas jobs in a location supporting the disastrous urban infrastructure that dominates the world and causes many of its worst problems today, is anything but a green job.

So what should we be building? Not only the more compact neighborhood, district and city centers of real diversity but seen in the thoroughly “ecocity” way with high levels of integration, with features and detailing appropriate to the location. The basic principle here is so important it should be seen as one of the foundation stones of realconomics. That is that complex living systems, such as our own human bodies, function best as lean, three-dimensionally arranged entities. Similarly, the healthy city functions best as a lean, energy and land conserving entity that is also essentially three dimensional, not flat and spread out like modern, high energy and high land consuming suburbia. This is because lines of supply and communications are much shorter and quicker when they cross over and below one another instead of scattering out away from one another over large areas. Architect/philosopher Paolo Soleri put forward this paragraph’s observations in the early 1960s – they’ll be relevant and instructional forever.

This notion of “leanness” through compact complexity, that is, great variety well organized close together, is not only what is conventionally considered more “efficient” it also means there is more energy and material, land and time left over after essential maintenance activity to relish for relaxing, more time and energy for creative personal or collective activity. The city of health and options is the one that doesn’t trap the person on his or her way to work in a traffic jam or force the consumption of 500 gallons of gasoline a year, typical in the United States, but let’s the “commuter” get to work by just bicycling or walking a short distance. The three-dimensional lay out of the city is that basic – and such physical organization is common to all complex living things including the living (as compared to dying or killing) city.

If we can understand the city as a three-dimensional living organism and see that as a major insight for a realconomics of true sustainability we can suddenly see that many architectural features of clusters of buildings appear as if by magic from that realization. Suddenly bridges between buildings roof-to-roof or terrace-to-terrace and mid block ground level passageways such as cozy alleys, sky lit hallways and grand gallerias, make perfect sense for high pedestrian permeability. Rooftop gardens, shops and restaurants linked by those bridges and rooftop parks and promenades, multi-story solar greenhouses and exterior glass elevators all become part of the rich architectural palate people have to date barely noticed. You, dear readers are the exception of course, hearing this list of ecocity features from my many times over the years. When we actually try them out and put them all together I believe we’ll only then realize what a powerful and healthy finally complete design for living actually is.

Getting building

Now that we have a better idea of what to build, how to get started? Ecovillages in the country have the opportunity to express these ecocity features and take the lead if they feature the kind of elements mentioned in the paragraph immediately above. They would have to involve bridge-linked buildings of probably seven or more stories to fully illustrate full-bodied ecocity design and would have to relate to adjacent agriculture and natural habitat restoration. Attached food producing solar greenhouses ascending part of the sunny side: absolutely necessary.

Such projects could grow up from a neighborhood centers too. This in the ecocity movement we call an “integral project” or an “ecocity fractal,” which is a fraction of what could be a whole ecocity with all essential parts and functions – housing, work, commerce, learning, farming, restoration of nature and connection to other centers with bicycle or rail routes – present and well arranged. Understanding the “full spectrum” or “complete” center in this way informs us about the components of the ecocity and fills out the notion of what we need to build for a truly sustainable natural and human economics, my proposed realconomics.

“Knowing what to build” means we also know that there can be plenty of work for everyone. The ecocity foundation of realconomics provides a very full and vibrant economy even if it is an economy of a city shrinking in footprint and total size, that is, actual size in terms of volume of physical built infrastructure for any particular population, and shrinking in terms of quantity of land, materials and energy needed for its construction and maintenance. This is a paper about economics of an ecological nature so it is highly relevant to point out that the Great Depression was put to an end by Keynesian economics in the hands of the Franklin Delano Roosevelt Administration between 1932 and 1945. Struggling to figure out what to do about more than two years of a depression getting deeper and deeper when the new president took over, Roosevelt began experimenting with dozens of initiatives to enliven the economy. Things actually got worse for a while. His administration followed the deficit spending formula of John Maynard Keynes putting everyone to work on clearly defined projects in not only new infrastructure construction – airports, hospitals, bridges, highways, dams, post offices, libraries and so on – but ecological projects such as reforestation and soil reclamation. Conservative capitalists, whose hands-off government philosophy let economic conditions sink rapidly from the Crash of 1929 until the Roosevelt years, considered the new president leading the country to socialism and many did not believe in his attempted solutions. While good projects were happening, they weren’t being embraced completely whole-heartedly. But when the Second World War started, there was no doubt at all what needed to be built, for better or worse, and the whole country went into gear behind the war effort. Deficit spending, targeted for a particular outcome – victory over fascism and slavery – was seen as a strategic investment in future prosperity and tapping into that prosperity at a later time to pay down the expenses of winning the war.

It was perhaps the largest experiment in application of an economic theory with the most clear lesson – if anyone bothers to pay attention – that we’ve had in a century or more or maybe ever. What it means for us now is that if we could decide we need to build the ecocity civilization and invest in it vigorously we could win this war against our planet by turning it around and making it instead a war to save our planet. What we most need then is realconomics and its physical manifestation: ecocities.

The Big Five

Alas, that is not enough! Our cities, towns and villages are collectively the largest thing our species creates but then we are too large ourselves. That is, human population is enormous and without massive use of energy and material, probably even in the context of an ecocity future, it would in all likelihood be far more than a healthy ecology of real diversity on the planet could tolerate. I see, in fact, five big items we have to deal with, all of which most people are very resistant to facing. Much less do many seem to be able to summons the courage, commitment and personal energy to engage realistically with good hard work. To me they seem to be lacking a clear idea of what is needed and an outline of how to proceed. Maybe that would summons the courage and hard work. This leads to the following thinking:

Axiom 1.

The City is the engine of prosperity.

This is the gigantic economics lesson I’ve been writing about to this point in this paper. And the ecocity is the type of city that contributes to soil and biodiversity buildup as well as prosperity while demonstrating how the city can grow smaller in land and energy consumption. By the way, in a world stuffed with computers that get more valuable as they get smaller per function, this should sound about as normal as things can get, and a very good idea.

Axiom 2.

The Big Five

If we wish to build a healthy economics, there are “Five Big Areas of Action” we need to engage which society has been avoiding, of which the built environment is one. They are:

Physical actions

1. Deal with overpopulation

2. Reshape the agriculture/diet nexus to be far less land and energy consuming

3. Build ecocities

Detailing the above two not already covered in this paper is material for another paper.

But we can see at a glance that in dealing with religious dogma, family habits, old age security, education and reproductive rights for women and business prejudices for maximum growth we are up against a very large problem in trying to solve the population problem. Yet we need to do this and can, reducing human numbers gradually, steadily and peacefully to a level where each of us in some future time can thrive in a world where nature thrives too. In addition it should be stressed that the idea of infinite growth translates into an economics absurdity that the larger the population on a limited planet the more for each of us, “the more of us the larger our slice of the pie.” (Could economists really mean this?!) The reverse is closer to the truth, “the fewer of us the more for each,” down to at least, enough of us to provide for the variety of experience for genuinely full, creative, compassionate lives. We need in other words workers, organizers of work, teachers, artists and scientists for insight and knowledge, children for inspiration and continuity of our species into the future and so on, population enough for a truly prosperous human presence. We don’t know the best approximate number because we have yet to honestly address the situation, but seven going on nine or ten billion?!…

Regarding the agricultural/diet nexus we have another enormous problem that starts with modern agriculture taking up so much land. This is the only enterprise humanity engages in that is on a scale comparable to building cities, towns and villages. Agriculture is different in that it takes place in a thin layer in two dimensions rather than in three-dimensional volume. Even before its ecologically damaging chemicals and massive demand for energy is factored in, it eliminates vast areas of natural habitat that is needed if we want long-term healthy biodiversity on this planet. The answer is largely to move toward organic agriculture and move away from diets heavy in meats.

Reshaping the autocity impacts agriculture in two very significant ways right of the top. First, reversing sprawl would liberate millions of acres presently covered in concrete and asphalt for the cars, and second, more and more farmland is being appropriated for fueling cars instead of feeding people. Says Lester Brown, if all the farmland in the United States were dedicated to biofuel production for the country’s cars, there would be none left for food production for people. In fact there would not be even enough for all the cars. That’s how much energy a 3,000 pound object accelerating to and decelerating from ten times the speed of a person consumes. Another way of looking at it, filling the typical car’s gas tank once takes about as much agricultural land for biofuel production as feeding a person for an entire year.

Mental actions among the Big Five

4. Act on generosity, invest in ecological health and peace via the above three

This means paying taxes, seriously graduated income taxes, and being, as all democracies are rightly said to be required to be, ever vigilant to prevent corruption in both government and business. The percept also has another dimension: that we try much harder to put an end to violent conflict as in the stealing and killing in war and wasting of vast treasure in preparing for war. That is the absolute antithesis of generosity.

5. Education strongly emphasizing the above four

Axiom 3.

If we want to actually engage building the physical solutions to our growing economic debacle it is instructive to notice what I call the “Three Sacred Cows” of US Capitalism. If you want to build anything you have to go to where the money actually is. And where it actually is happens to be is 1.) hoarded by the super rich, 2.) locked into military spending and 3.) invested in the (presently very badly) built environment. Those are the three big areas of the resource called money and areas constantly generating more and more waste that instead could be turned to our salvation in crucial times.

About the first, which has everything to do with generosity, #4. among the Five Big Ones, it’s hard to tax the rich with all their power to buy politicians. But by law or persuasion and conscience of the sort that occasionally produces real philanthropy, it must be done if we have any hope of building our way out of economic, I’d say, realconomic collapse. Serious graduated income tax with no loopholes would solve many problems. Unfortunately people are too categorically fixated – dare we not call them stupid – to lump the super rich in with the middle class and the financially more challenged under the slogan “no more taxes!” This is a cry that makes no sense at all when a few million people have thousands of times what those billions on the lower rungs of society have. The question is tax whom? If the vast majority can’t figure out that tax breaks for the rich are not in their interest, one is tempted to say they are fools enough to deserve financial ruin. Except that at this point in history when we need to spend money on building right to solve deadly problems, the children of those who can’t figure out this simple math, all the other species, and no doubt even the children of the rich, are the ones who will suffer catastrophically.

The military budget – colossal! We all know we need to work on conflict resolution, honest diplomacy and cooperation instead of lying for advantage and using secrecy and competition to the point of killing one another and overrunning each other’s countries. We all know it would help getting to know and appreciate one another better. I won’t undertake here how to do that, but I will suggest that lower budgets for “defense” would release salvation-scale investments if we knew what to build, and I’m claiming this paper knows what to build.

As to the automobile city infrastructure getting in the way, remember the misallocation of money for the Caldecott Tunnel Fourth Bore and go from there: not just billions but trillions of dollars for building nothing less that a thriving future as an alternative to collapse.

Axiom 4. Work Hard – China is proving it works.

That is the last very basic word of guidance and requirement in my realconomics list, as if it really needed to be said, though people don’t like thinking about this one, another very big issue, either. But hard work really works.'

11 February 2011

Using Nature's Genius in Architecture

Sourced from TED.com, February 2011


'How can architects build a new world of sustainable beauty? By learning from nature. At TEDSalon in London, Michael Pawlyn describes three habits of nature that could transform architecture and society: radical resource efficiency, closed loops, and drawing energy from the sun.'

10 February 2011

How Rooms & Architecture Affect Mood & Creativity

Even if you don't read the article, look at the pictures :)

Reposted in full from
Ouno Design, 2 May 2009

Jonas Salk claimed that it wasn’t until he left his basement lab in the States and went to clear his head in a monastery in Assisi that he became able to solve the puzzle of polio. He thought that Assisi’s colonnaded walks, serene architecture and hillside views had provided the right mental conditions for the necessary creative and intellectual leap.

This story is from the April edition of Scientific American, in an article on neuroscience by Emily Anthes titled “How Room Designs Affect Your Work and Mood.”

Salk was so certain of the effect of Assisi’s architecture on his work that he later hired Louis Kahn to build the now famous Salk Institute (photos below), and the influence of Assisi is clearly visible – the simple, harmonious colonnades, the long vistas, the pale buttery colour of the stone.

Some of the scientific findings in the article confirm what we might already have guessed, while others are more surprising. Lighter, brighter spaces with full-spectrum lighting increase alertness and help guard against depression and, later in life, against cognitive decline.

Conversely, rooms intended mainly for relaxation should feature darker colours, dimmer lighting, fewer sharp edges on furniture and bookshelves (these activate the part of the brain that alerts us to danger), and more carpeting.

Lower ceilings improve performance in detail-oriented tasks, whereas high ceilings encourage abstract creative thought. Views of nature, particularly distant trees and green space, are proven to significantly aid in creativity, concentration and memory (and in combatting ADD in children).'






The original Scientific American article, 22 April 2009

Building Around The Mind

Brain research can help us craft spaces that relax, inspire, awaken, comfort and heal

By Emily Anthes

'In the 1950s prizewinning biologist and doctor Jonas Salk was working on a cure for polio in a dark basement laboratory in Pittsburgh. Progress was slow, so to clear his head, Salk traveled to Assisi, Italy, where he spent time in a 13th-century monastery, ambling amid its columns and cloistered courtyards. Suddenly, Salk found himself awash in new insights, including the one that would lead to his successful polio vaccine. Salk was convinced he had drawn his inspiration from the contemplative setting. He came to believe so strongly in architecture’s ability to influence the mind that he teamed up with renowned architect Louis Kahn to build the Salk Institute in La Jolla, Calif., as a scientific facility that would stimulate breakthroughs and encourage creativity.

Architects have long intuited that the places we inhabit can affect our thoughts, feelings and behaviors. But now, half a century after Salk’s inspiring excursion, behavioral scientists are giving these hunches an empirical basis. They are unearthing tantalizing clues about how to design spaces that promote creativity, keep students focused and alert, and lead to relaxation and social intimacy. Institutions such as the Academy of Neuroscience for Architecture in San Diego are encouraging interdisciplinary research into how a planned environment influences the mind, and some architecture schools are now offering classes in introductory neuroscience.

Such efforts are already informing design, leading to cutting-edge projects, such as residences for seniors with dementia in which the building itself is part of the treatment. Similarly, the Kingsdale School in London was redesigned, with the help of psychologists, to promote social cohesion; the new structure also includes elements that foster alertness and creativity. What is more, researchers are just getting started. “All this is in its infancy,” says architect David Allison, who heads the Architecture + Health program at Clemson University. “But the emerging neuroscience research might give us even better insights into how the built environment impacts our health and well-being, how we perform in environments and how we feel in environments.”

Higher Thought

Formal investigations into how humans interact with the built environment began in the 1950s, when several research groups analyzed how the design of hospitals, particularly psychiatric facilities, influenced patient behaviors and outcomes. In the 1960s and 1970s the field that became known as environmental psychology blossomed.

“There was a social conscience growing in architecture around that time,” says John Zeisel, a Columbia University–trained sociologist who, as president of Hearthstone Alzheimer Care, specializes in the design of facilities for people who have dementia. Architects began to ask themselves, Zeisel adds, “‘What is there about people that we need to find out about in order to build buildings that respond to people’s needs?’ ” The growth of the brain sciences in the late 20th century gave the field a new arsenal of technologies, tools and theories. Researchers began to consider “how can we utilize the rigorous methods of neuroscience and a deeper understanding of the brain to inform how we design,” says Eve Edelstein, a visiting neuroscientist at the University of California, San Diego, and adjunct professor at the New School of Architecture and Design, also in San Diego.

Now research has emerged that could help illuminate Salk’s observation that aspects of the physical environment can influence creativity. In 2007 Joan Meyers-Levy, a professor of marketing at the University of Minnesota, reported that the height of a room’s ceiling affects how people think. She randomly assigned 100 people to a room with either an eight- or 10-foot ceiling and asked participants to group sports from a 10-item list into categories of their own choice. The people who completed the task in the room with taller ceilings came up with more abstract categories, such as “challenging” sports or sports they would like to play, than did those in rooms with shorter ceilings, who offered more concrete groupings, such as the number of participants on a team. “Ceiling height affects the way you process information,” Meyers-Levy says. “You’re focusing on the specific details in the lower-ceiling condition.”

Because her earlier work had indicated that elevated ceilings make people feel physically less constrained, the investigator posits that higher ceilings encourage people to think more freely, which may lead them to make more abstract connections. The sense of confinement prompted by low ceilings, on the other hand, may inspire a more detailed, statistical outlook—which might be preferable under some circumstances. “It very much depends on what kind of task you’re doing,” Meyers-Levy explains. “If you’re in the operating room, maybe a low ceiling is better. You want the surgeon getting the details right.” Similarly, paying bills might be most efficiently accomplished in a room with low ceilings, whereas producing great works of art might be more likely in a studio with loftier ones. How high the ceiling actually is, Meyers-Levy points out, is less important than how high it feels. “We think you can get these effects just by manipulating the perception of space,” she says, by using light-colored paint, for instance, or mirrors to make the room look more spacious.

Natural Focus

In addition to ceiling height, the view afforded by a building may influence intellect—in particular, an occupant’s ability to concentrate. Although gazing out a window suggests distraction, it turns out that views of natural settings, such as a garden, field or forest, actually improve focus. A study published in 2000 by environmental psychologist Nancy Wells, now at Cornell University, and her colleagues followed seven- to 12-year-old children before and after a family move. Wells and her team evaluated the panoramas from windows in each old and new home. They found that kids who experienced the greatest increase in greenness as a result of the move also made the most gains on a standard test of attention. (The scientists controlled for differences in housing quality, which turned out not to be associated with attention.) Another experiment demonstrated that college students with views of nature from their dorm rooms scored higher on measures of mental focus than did those who overlooked entirely man-made structures.

Green play space may be especially beneficial for students with attention disorders. Landscape architect and researcher William Sullivan of the University of Illinois and his colleagues studied 96 children with attention deficit disorder (ADD). The scientists asked parents to describe their children’s ability to concentrate—say, on homework or spoken directions—after the kids engaged in activities such as fishing, soccer and playing video games in which they were exposed to varying amounts of greenery. “The parents reported that their children’s ADD symptoms were least severe after they’d been in or observing green spaces,” says Sullivan, whose results were published in 2001.

Such findings may be the result of a restorative effect on the mind of gazing on natural scenes, according to an idea developed by psychologists Stephen Kaplan and Rachel Kaplan, both at the University of Michigan at Ann Arbor. By this theory, the tasks of the modern world can engender mental fatigue, whereas looking out at a natural setting is relatively effortless and can give the mind a much needed rest. “A number of studies have shown that when people look at nature views, whether they’re real or projected on a screen, their ability to focus improves,” Stephen Kaplan says.

Nature views may be more rejuvenating than urban scenes are, Sullivan adds, because humans have an innate tendency to respond positively toward nature—an explanation dubbed the biophilia hypothesis. “We evolved in an environment that predisposes us to function most effectively in green spaces,” he says. In a December 2008 paper in Psychological Science, Stephen Kaplan also proposes that urban settings are too stimulating and that attending to them—with their traffic and crowds—requires more cognitive work than gazing at a grove of trees does.

Using nature to boost attention ought to pay off academically, and it seems to, according to a study that will be published in spring 2009 and that was led by C. Kenneth Tanner, head of the School Design & Planning Laboratory at the University of Georgia. In their analysis of more than 10,000 fifth-grade students in 71 Georgia elementary schools, Tanner and his colleagues found that students in classrooms with unrestricted views of at least 50 feet outside the window, including gardens, mountains and other natural elements, had higher scores on tests of vocabulary, language arts and math than did students without such expansive vistas or whose classrooms primarily overlooked roads, parking lots and other urban fixtures.

Seeing the Light

In addition to greenery, the natural world has something else to offer building occupants: light. Daylight synchronizes our sleep-wake cycle, or circadian rhythm, enabling us to stay alert during the day and to sleep at night. Nevertheless, many institutional buildings are not designed to let in as much natural light as our mind and body need.

A lack of light can be a particular problem for schoolchildren. “You take a child who probably didn’t get enough rest, dump them off in front of a school where there’s very little natural light, and guess what? They have jet lag,” Tanner says. A 1992 study followed Swedish schoolchildren in four different classrooms for a year. The research showed that the kids in classrooms with the least daylight had disrupted levels of cortisol, a hormone that is regulated by the body’s circadian rhythms.

Adequate sunlight has also been shown to improve student outcomes. In 1999 the Heschong Mahone Group, a consulting group based in California that specializes in building energy-efficient structures, collected scores on standardized tests of math and reading for more than 21,000 elementary school students in three school districts in three states: California, Washington and Colorado. Using photographs, architectural plans and in-person visits, the researchers rated the amount of daylight available in each of more than 2,000 classrooms on a scale of 0 to 5. In one school district—Capistrano, Calif.—students in the sunniest classrooms advanced 26 percent faster in reading and 20 percent faster in math in one year than did those with the least daylight in their classrooms. In the other two districts, ample light boosted scores between 7 and 18 percent.

Retirement homes can also be too dark to keep circadian clocks ticking away normally. In a study published in 2008 neuroscientist Rixt F. Riemersma-van der Lek of the Netherlands Institute for Neuroscience and her colleagues randomly selected six of 12 assisted-living facilities in Holland to have supplemental lighting installed, bringing the luminosity to approximately 1,000 lux; the other six provided dimmer lighting of around 300 lux. On tests taken at six-month intervals over three and a half years, the residents of the more brightly lit buildings showed 5 percent less cognitive decline than occupants of the six darker buildings did. (The additional lighting also reduced symptoms of depression by 19 percent.) Other studies show that circadian rhythms keep the brain functioning optimally by calibrating hormone levels and metabolic rate, for example. Elderly people—especially those with dementia—often have circadian disruptions. Providing bright daytime light, the researchers believe, could have helped restore their proper rhythms and thus have improved overall brain function.

The wavelength of light is also crucial. Our circadian systems are primarily regulated by short-wavelength blue light; the photoreceptors that feed back to the suprachiasmatic nucleus, a part of the hypothalamus that regulates our daily rhythms, relay the most nerve impulses to the brain when they detect blue light. This short-wavelength light—present in sunlight—lets the brain and body know it is daytime. (In contrast, our rods and cones, which are responsible for vision, fire maximally when exposed to green or yellow-green light.)

Researchers recommend using blue light-emitting diodes (LEDs) and full-spectrum fluorescent lights in buildings during the day; both have enough blue light to trigger the circadian system and keep occupants awake and alert. After dark, buildings could switch to lamps and fixtures with longer-wavelength bulbs, which are less likely to emit light detected by the circadian system and interfere with sleep at night. “If you can give people a lighting scheme where they can differentiate between day and night, that would be an important architectural decision,” says Mariana Figueiro, program director of the Lighting Research Center at Rensselaer Polytechnic Institute.

A Room to Relax

Although bright light might boost cognition, recent work suggests it counteracts relaxation and openness—effects that might be more important than alertness in some settings. In a 2006 study counselors interviewed 80 university students individually in either a dim or a brightly lit counseling room. The students then completed a questionnaire about their reactions to the interview. The students questioned in the dim room felt more relaxed, viewed the counselor more positively and shared more information about themselves than those counseled in the brighter room did. The findings suggest that dim light helps people to loosen up. If that is true generally, keeping the light low during dinner or at parties could foster relaxation and intimacy.

A room’s contents can be similarly soothing—or the opposite. Neuroscientist Moshe Bar of Harvard Medical School and Maital Neta, then his research assistant, showed subjects photographs of various versions of neutral objects, such as sofas and watches. The examples of each item were identical except that some had curved or rounded edges, whereas others had sharp, squared-off perimeters. When asked to make snap judgments about these objects, subjects significantly preferred those with curves. Bar speculates that this preference exists because we associate sharp angles with danger. (The brain may sense a greater hazard, for instance, from a cave in which jagged rocks protrude from the walls than from one in which rounded rocks do the same.) “Maybe sharp contours are coded in our brains as potential threats,” he says.

Bar provided some support for this theory in a 2007 study in which subjects again viewed a series of neutral objects—this time while their brains were scanned using functional magnetic resonance imaging. The neuroscientist found that the amygdala, which is involved in fear processing and emotional arousal, was more active when people were looking at objects with sharp angles. “The underpinnings are really deep in our brain,” Bar explains. “Very basic visual properties convey to us some higher-level information such as ‘Red alert!’ or ‘Relax, it’s all smooth; there’s no threat in the area.’ ” He acknowledges that an object’s contour is not the only element that informs our aesthetic preferences, and his research is still in its early stages. But all other things being equal, filling a living room or waiting room with furniture that has rounded or curved edges could help visitors unwind.

Furniture choices can also influence human interaction. Some of the earliest environmental psychology research focused on seating plans in residential health care facilities; scientists discovered that the common practice of placing chairs along the walls of resident day rooms or lounges actually prevented socializing. A better plan to encourage interaction, researchers found, is organizing furniture in small groupings throughout the room. A 1999 study by psychologists at the Otto-von-Guericke University of Magdeburg in Germany and Uppsala University in Sweden examined seating in a different setting. Over eight weeks and more than 50 lessons, the researchers rotated a class of fourth-grade students between two seating arrangements: rows of desks and a semi circle of desks around the teacher. The semicircle configuration increased student participation, boosting the number of questions pupils asked. Other studies suggest that putting desks in rows encourages students to work independently and improves classroom behavior.

Carpeting can also grease the social wheels. In hospitals, carpet increases the amount of time patients’ friends and families spend visiting, according to a 2000 study led by health care design expert Debra Harris, now president and CEO of RAD Consultants in Austin. Such social support may ultimately speed healing. Of course, carpeting is much harder to clean than traditional hospital flooring—and may present a health hazard in some settings—so it may not be appropriate for places such as an emergency room, where there is high patient turnover and plenty of mess. But rooms, buildings or wards that are home to long-term patients, such as assisted-living facilities, may benefit from carpets.

So far scientists have focused mainly on public buildings, such as hospitals, schools and stores. Thus, a homeowner interested in boosting his or her mind through design must do some extrapolating. “We have a very limited number of studies, so we’re almost looking at the problem through a straw,” Clemson’s Allison says. “Now we need to find more general patterns. How do you take answers to very specific questions and make broad, generalized use of them? That’s what we’re all struggling with.”

The struggle should pay off, experts believe, because when designers fabricate buildings with the mind in mind, the occupants benefit. Well-designed special care units for Alzheimer’s patients reduced anxiety, aggression, social withdrawal, depression and psychosis, according to a 2003 study by Zeisel and his colleagues. And school design can account for between 10 and 15 percent of variation in elementary school students’ scores on a standardized test of reading and math skills, suggests a 2001 report by investigators at the University of Georgia.

“Because of advances in neuroscience, we can begin measuring the effects of the environment at a finer level of detail than we have before,” U.C.S.D.’s Edelstein says. “We can understand the environment better, we can understand our responses better, and we can correlate them to the outcomes. I just get chills when I think about it.”'

06 February 2011

Green Spaces on City Rooftops


Reposted in full from G Magazine, 29 June 2010


The 2800-m2 roof garden atop the M Central residential complex in Pyrmont, Sydney, was completed in 2005 by landscape architects, 360°. It features native grasses, succulents, vine arbours and mature specimen trees alongside cascading water features, timber boardwalks and sculptures

'An aerial view of most major Australian cities shows only the occasional green patch, stark against an endless procession of grey concrete roofs, paths, car parks and bitumen roads.

As our climate grows inexorably hotter, it’s not unusual for city dwellers to experience daily temperatures more than 7°C higher than those living outside the built-up areas. And such temperature rises in our urban spaces can’t all be blamed on climate change. We have created urban heat islands in our cities by removing the best natural air-conditioning: plants. When we erect concrete jungles, we trap heat rather than regulating it through our flora.

Now gardeners are joining forces with architects to restore a little greenery to our cities by taking advantage of a little-used space – the roof.

“Interest in green roofs is growing substantially around the world,” says Australian landscape architect Jock Gammon.

Living, breathing air-conditioners

One of the most significant benefits of green roofs is their immediate cooling effect, which goes beyond the insulation properties of a layer of soil and plants.

“As the plant transpires water, it reduces surrounding air temperatures and cold air drops down the face of the building. With enough roof gardens, there can be a significant effect on cities,” says architect Paul Downton, who is the co-creator of Adelaide’s groundbreaking Christie Walk eco-development.

Gammon says that a green roof also enhances the performance of solar panels by reducing their operating temperature, making them more efficient.

Canada’s Ryerson University predicted that the city of Toronto could reduce its ambient air temperatures by up to 2°C if around eight per cent of the city’s buildings had green roofs – a total area of around 5,000 ha. They estimated a resulting annual energy use reduction of 114 MW and a corresponding saving in

greenhouse gas emissions of 56,000 tonnes.

Green roofs can also improve air quality. A 1996 NASA study found that a single fig tree purifies 10 cubic metres of air a day; other research showed that one square metre of grass removes about 0.2 kg of particles from the air each year.

In cities, clean rainwater quickly becomes dirty stormwater run-off, but this can be captured instead by green roofs. While plants release some water back into the atmosphere, the rest can be naturally filtered for use by building residents.

Downton names some further benefits: “As well as being quite beautiful, visually, green roofs bring back habitat and increase biodiversity in an area.”

Different cities, different solutions

The most substantial benefit of green roofs in Australian cities will be the evaporative cooling that occurs, says Ben Nicholson, a Melbourne-based town planner, who has toured the world’s best green roof projects.

“Green roofs can reduce the temperature of a roof’s surface by 50°C – it’s really significant. The reduction of heat transfer into the building elements depends on a number of factors, but it also makes a big difference on the surrounding air,” he says.

Overseas, many cities acknowledge the benefits. Tokyo, for example, now requires green roofs to be installed on 20 per cent of the city’s roof surfaces, and many US cities are introducing regulations designed to promote green roofs.

At 600 metres in the sky, one of the world’s highest green roofs is on Chicago’s Willis Tower, formerly called the Sears Tower, which was the world’s tallest building when it was completed in 1973. As part of a green retrofit to reduce the building’s energy use by an estimated 80 per cent, an experimental green roof featuring mountainous plants like sedum was installed a year ago on a 90th-floor rooftop, with further rooftop gardens planned.

Australia catching up

Sidonie Carpenter, a landscape architect and president of Green Roofs Australia, admits that the rise of the green roof has been a little slow to take off in Australia, despite our iconic lawn-covered Parliament House.

She points out that roofs in Australia, unlike those in Europe and America, are not built to withstand snow-loads and so retrofitting often involves very expensive structural engineering. Little data exists about the number of green roofs in Australia at this stage, but according to Carpenter:

“There’s real momentum in Australia now; overseas experts have been blown away by the attitude and ability of the people involved in the industry here.”

Future plans

City of Melbourne Councillor Cathy Oke chairs the Eco-City Committee and says she’s excited about the potential of green roofs to transform the city. “Cities have huge heat islands; they are hot and getting hotter and green roofs and vertical gardens are definitely a way to mitigate this,” she says.

Although many cities in Europe and North America have made green roofs mandatory, Oke says that there’s a long way to go before Melbourne follows suit.

Ben Nicholson believes that a strategic policy approach informed by good local data is critical for the success of green roofs. “Engineering, safety and privacy are key town planning issues.

He says there needs to be policy developed across federal, state and local governments including incentives and planning mechanisms to encourage multiple green roof developments in Australia’s cities.

“One green roof will make a difference to a building – but a thousand green roofs will make a difference to a city,” he says.'