Feb 24, 2012
Remanufactured cartridges: Cartridge World, West End, Brisbane, AU
Feb 11, 2010
Jul 25, 2009
Porteous, J 2009, “Guardians of the electric reef.” ECOS 147 February-March, pp. 10-11.
- the constant consumption of electricity by the installations, so the reefs should be close enough to the shore, and preferably energy from renewables should be chosen,
- the point targeting – you need one cable for one structure, so restoration of massive structures like Great Barrier Reef seems unfeasible.
Jul 23, 2009
Ross, A. “Modern interpretations of sustainable development,” Journal of Law and Society 36, issue 1 (2009): 32-54
Exact meaning of sustainable development remains unclear: different definitions, broad interpretations, but allthey can be divided into 2,5 groups:
Currently states shift towards using SD as a guiding ethics for creation of legal frameworks, from man vs. nature to man as a part of the nature. SD as a material consideration only suggests sustainability as a worthwhile objective, SD as a legal rule provides procedural requirements for achieving sustainability and therefore delivers it. So to achieve sustainability, the principle of SD should be incorporated into legislation as thoroughly as possible, to be not only moral obligation, but be officially required.
I see the problem of applying the concept of SD, even being incorporated into legislation, in the fact that developing countries tend to solve their urgent problems first, and when it's famine, natural disasters, or epidemics, and as far as basic needs of their citizens are not satisfied, sustainability will not be reached (the pyramid of Maslow is invincible). SD is achievable in countries without serious tensions, but if they are there, it's much harder, if not impossible. Hungry people don't care about the environment. Food, water, shelter, then goes environment.
This post is a reprint of the original assignment for ENVM7202 Course, UQ, Semester 1 2009
Lines, W. J. and O'Connor, M. Overloading Australia: how governments and media dither and deny on population. Canterbury, NSW: Envirobook, 2008
Australia is overpopulated (sustainable population is 8-12 million versus current 21 million (July 2008). The reasons are high level of immigration and high level of reproduction (1.6% annual population growth by mid-2008). Despite the warnings of environmentalists and some of government's advisers (e.g. Tim Flannery, Ross Garnaut etc.), the government and media continue to support the belief that AU can sustain much more people: more people mean more taxes for the state and more consumers for companies. Property development businesses support politicians and force them to boost “growth-at-all-costs”.
Although the book is written a bit in a spy mania manner, it is very convincing. Everybody want to consume on a rate he/she can afford (somebody consumes even more!). The history of international environmental law tells that developing countries eager to develop despite the possible ecological consequences to increase the quality of life for their citizens (Stockholm – Rio – Johannesburg conferences show the consecutive shift of priorities from conservation to development). I assume that given the strong incentives (penalties + benefits + opportunity of contraception, i.e. cardinal), most people can be persuaded (or forced) to limit their family, especially in urban areas, where they don't need so much working hands. It will be easier than to force them to limit their lifestyle (especially when it's almost nothing to limit – India, Africa etc.).
This post is a reprint of the original assignment for ENVM7202 Course, UQ, Semester 1 2009
Hannon, B. “How might nature value man?” Ecological Economics 25 (1998): 265-279.
The aim of the article is to estimate quantitatively if the humanity is a burden for the Earth by means of calculation of so-called Gross Ecological Product (net outputs of the system multiplied by their ecological prices) with and without the presence of humans in the system of its production. If GEP rises with the presence of humans, then their existence is beneficial, if it falls, they are the burden.
The ecological prices of inputs and outputs are unified by transformation of their physical units into common energy units. According to the article, people can influence the GEP by the following ways:
change of ecological prices (e.g. increase of vegetation cover decreases EP, reduction of vegetation life increases EP, increase of livestock increases EP (they consume vegetation cover));
change of dissipation rate (e.g. extraction of minerals increases non-replaced dissipation rate);
change of the amount and distribution of the metabolic costs (e.g. increase of area for vegetation and livestock increases MC, increase of sunlight consuming by one plant due to fertilizers increases MC), or
combination of ways above.
The ways of influence on GEP reminded me about the I=PAT formula, where I is population impact, P – population size, A – per-capita affluence (or sometimes consumption), T – environmental damage caused by production of one consumption unit [1]. Reduction of dissipation rate reflects the reduction of technological impact of production, increase of population increases metabolic costs as far as every person depends on the sunlight for his/her growth (vitamin D3 is produced by the organism as a result of UV-exposure and is necessary for bone creation), change of consumption affects ecological prices. However I like the concept of GEP more than calculation of population impact, because the former provides the base for comparison (obviously, not only humans destroy ecosystems, the question is do we encourage the total destruction by being here), although it takes a huge amount of time to obtain the data for computation.
[1] G. C. Daily and P. R. Ehrlich, “Population, sustainability, and Earth's carrying capacity,” BioScience 42, no. 10 (1992), 762.
This post is a reprint of the original assignment for ENVM7202 Course, UQ, Semester 1 2009.