Monday, 15 September 2008
Catastrophic Economic Crash
In the depression, the billionaire John Rockefeller, decided to build the Rockefeller Centre, which was a huge building project, bang smack in the middle of New York. He took a risk with his fortune and his reputation, believing that a large building project would stimulate the economy and kick start a recovery. It did. His gamble paid off, leading to the boom in the following decades. For this reason he's still hero to this day to many who are aware of the history and to those who are still around to remember it. Large public works can lead to an economic boost. But with the latest crisis the sources of private funding are the very sector in the economy which are causing the downturn. So this isn't always an option.
Saturday, 16 August 2008
Water Security.
So how does an increasing population adequately supply itself with enough water to supply its industry, its homes and its agriculture? For example Coke, the most popular soft drink in history, with an addictive quality, takes nine parts of water to create one part of Coke. In some areas of California for example, there is a stretch of prime arable land which has been artificially created by engineers and farmers. It should be an arid stretch of land. But they take water from a number of sources including underground aquifers and water this large piece of land so that it can produce all manner of vegetables, crops and fruits. However because of the population demands and limited water supply, these two parts of the human system are now competing for this water at increasing levels. In fact this land may have to be abandoned and crops shipped in from else where.
Part of the solution is knowing what to do with water that has been flushed into the sewage system. Stuff that we have used just gets wasted and flushed into the sea. And desalination plants are expensive to build and run and can only really supply sea side towns and cities, because of the huge costs of pumping water inland. Recycling on the other hand can borrow natural filtration systems. They take the water coming from sewage and feed that water through a treatment plant. They then run the water through the ground and into the underground aquifers. They then collect it and run it through a treatment plant again before re-feeding it into the pipework to homes and businesses. It is essentially what happens to water anyway. Its just a system borrowed from nature and put to work by humankind. The engineers who proposed the Californian scheme say that the water is purer than treated rain water.
Desalination plants are another option. However the energy needed to produce the filtered water is enormous. Over the years countries like Saudi Arabia and Australia have built them and made them so that they use less energy than before. But the energy levels are still unsustainable high. It makes the water more expensive for the end user. The costs of pumping water from desalination plants is also high, adding yet more cost to the end user. So without a sustainable energy source desalination plants can only really be used en-mass in two circumstances. One that the water is delivered locally, i.e. to seaside towns and cities. And two if the energy they use comes from a sustainable source.
I think that recycling is the best chance for water security. Because as well as river systems not reaching their delta's anymore, but underground fresh water aquifers are drying up very quickly indeed. It will be a matter of decades before our usage levels outstrip the replenishment from natural sources, if not sooner. If not now. We need an overall, global agreement on water with plenty of funding for engineering project and we need to begin this process now.
Monday, 16 June 2008
Brazil's Future Town


Tuesday, 29 April 2008
Big Buildings



This building is impressive and really scares me (in a good way). I love the idea of enclosing a city into a structure. However, besides the cost both the Xceed and the Crystal Island run contrary to the idea of disaster proof buildings. Large buildings drain a lot of energy and raw materials, and shouldn't be encouraged over a certain size. Secondly the buildings physical integrity can only take it so far over a point where the buildings will collapse under their own weight. A lot of architects and engineers believe that they can build large buildings whilst maintaining integrity during earthquakes or impacts. But the fact is they can't. The physical restrains will mean that structural integrity will only last so long before major engineering repairs would need to be carried out. Within a capitalist economy it would not be possible to build a building that would be so economically as well as structurally unstable. It would be like the very large engineering projects of the past. The Titanic; the SS Great Britain the giant cargo ship built by Isambard Kingdom Brunel, which killed Brunel and never made a fully laden voyage before heading for the scrap yard to be dismantled. Or the Channel Tunnel, straddling the UK and France, under the English Channel, which only started making a profit this year, a full 20 years to begin to make money for the owners. Large engineering projects within a free market economy need to be limited in size to make them financially viable, and with very large buildings, they need to be limited in size to offset the physical restrains of materials and the way they cope (or not) with natural stresses.
Nanotubes are of course lauded as the answer. But this technology is expensive and unproven and I doubt would be able to be used in a large construction like the Xceed idea. I believe that town and city sized buildings have a natural social and structural limit, and that once this limit is discovered (because we don't know what it is yet), then we can begin to experiment. Experimenting with peoples lives and the economies that build large buildings, is not the way to go. Besides earthquakes, high impacts in wars or from asteroid strikes, would utterly destroy the building and if those two things don't do it then economics will. A neglected super sized building is just as dangerous as one threatened by earthquakes - if not more so.
Saturday, 26 January 2008
Longevity of Materials
Foster + Partners.
The environmentally conscious building movement is in a state of collective amnesia, and its taking hold. Eco-towns are springing up all over the place including one in Abu Dhabi, which is walled city, with enclosed streets for pedestrians only. Designed by Foster and Partners (seemingly the only architect in the world at the moment), it's enclosed streets shade pedestrians as they wonder around, with small cars on monorails to take passengers around the town (see pic). The project is funded by petro-dollars and will house a eco-power R&D community. It is an answer to ecological problems with self-sustaining solar power supply and waste recycling systems etc. But they have not taken into account the disasters that will and have in the past, come about as a result of climate change. Rising sea levels, storms, dry prolonged periods, maybe earthquakes etc. If you really want a sustainable town you must look at the disasters and unusual weather events that come with it, at least. If not all possible disasters.
Wednesday, 23 January 2008
Working with Wood as a Sustainable Building Material
I believe that wood should be removed as an option in sustainable building methods and materials. At this early stage I think it's fine, but governments all over the world are pushing sustainable building practices onto statute books and planning laws, so at some point there will be a cry from the green lobby to say enough is enough and when that happens wood from any source would not be an option.