>From: [EMAIL PROTECTED] (Jeff Owens) >Subject: [ecopath] Energy and Cities >Date: Thu, 06 May 1999 07:46:33 -0700 > >Energy and Cities > >I recieved a report from the Institute for Global Futures Research >which looked at cities and sustainablility. Unfortunatly it is >copyrighted so all i can do is summarize its content. One of the >conclusions is that cities exist because of inexpensive energy. > > A diagram showing the development of cities compared to > the global energy use can be found (in an article in > Swedish) at http://www.etn.lu.se/~folke_g/RURSV2.HTM > >The report does not go into conservation which tends to favor >cities, so there is two sides to this question. One point which >is difficult to contest is that urban sprawl will be impacted. >Today urban areas depend on frequent auto use and are not >designed for food production. They are heavy energy users >and few nutriments are recycled. It was suggested that >phosphorus will be in short supply because nutriments are >not recycled. > >I wonder if water might be a bigger problem than phosphorus. >Possibly it would depend upon where the urban area was located. > >Anyway, the models suggested energy will begin impacting >urban areas around 2010-2020. The oil availability per >person will begin to decline and we will begin the shift >to other energy sources. > >The report argued that the US is accelerating this crisis by >not taxing oil. For example, the cost of gasoline around the >world looks like this: > >Price of gasoline: Australia 0.50 > Canada 0.41 > France 1.07 > India 0.72 > Japan 0.81 > Netherlands 1.21 > UK 1.23 > US 0.36 > > Source of information is: > <http://www.iea.org/stats/files/keystats/stats/p_0505.htm> > >Conclusions: The urban areas outside cities may be good >places to avoid in the future. And of course my favorite >conclusion: the future will be strongly infulenced by energy, >it will be useful to understand how it impacts our lives. > > ---------- >Jeff Owens ([EMAIL PROTECTED]) Zone 7, http://www.teleport.com/~kowens > Underground house, solar energy, reduced consumption, no TV > > ___________________________________________________________________ Mulai langganan: "subscribe envorum" ke [EMAIL PROTECTED] Stop langganan: "unsubscribe envorum" ke [EMAIL PROTECTED] Arsip di http://www.mail-archive.com/[email protected] atau di http://www.egroups.com/list/envorum
