This document considered the subject of sustainability, which is an inherently 'fuzzy' problem with innumberable
grey areas due to the arbitrary and intangible nature of the term 'sustainable' [Campbell, 1994; eds Edwards et al.
1990; Reeve, 1990]. Definitions of sustainability have thus tended to define what is not sustainable agriculture
instead of clarifying what is sustainable agriculture [Reeve, 1990]. Although there is general agreement about the
necessity of sustainability there is disagreement over its interpretation and application in Western industrialised
countries who consider sustainability from a short term economic paradigm [eds Edwards et al. 1990].
The defining of 'sustainability' is essential for any in depth study of sustainable agriculture [eds Edwards et al. 1990].
It involves complex issues such as timeframes, differing scales in space and levels of permanance [eds Edwards et al. 1990;
Roberts, 1995; Campbell, 1994; Reeve, 1990] which has made this topic highly debateable. This author adopts the definition
that sustainability is 'forever' [Kenney, 1989] and that its interpretation should be on a global dimension.
This broad interpretation is necessary as if it was any narrower controversy would inevitably result as the
rhetorical question could be asked, would research of three, ten, one hundred or even a thousand years be
considered as a sustainable timeframe?
It has been suggested by Reeve  that the modern usage of the term 'sustainable' has stemmed from 'sustainable
development', which in turn has its foundations in modern environmentalism. The word 'sustainable' is of great
environmentalist power [Rodale, 1990] and has come into popular use and as an umbrella term is applied to many
situations [Reeve, 1992]. This author recognises that it is more difficult to prescribe the practices that will
be sustainable in the future [Reeve, 1990]. Campbell  suggests that if all resources in a system are considered,
modern agricultural systems are not sustainable. His interpretation would appear to be valid. Hence, the use of the
term 'relative sustainability' would be more appropriate when assessing seemingly non-sustainable systems.
The concept of sustainable development has played an important evolutionary role in the sustainable debate and
became the catch cry in the eighties for the "Green" movement in Western societies [Tulloch, 1991]. Yet today
there is growing cynicism as the term 'economic progress' and 'living standards' are being maintained by the rapid
use of non-renewable resources and thus deprive future generations of these precious resources [Beatley, 1994; Fleay, 1995].
The scale of sustainability whether on farm, local or regional level all impacts on the global dimension as the the
earth forms one large ecosystem. The global aspect of sustainability is a foundational principle of sustainable
development [Bierbaum, 1991].
In assessing the relative sustainability of current agricultural production systems it is
necessary to define 'sustainable agriculture', but again their are many interpretations to this ambiguous
term due to a host of apparent conflicting ideas and heavily value laden concepts. The popularity of the term
sustainable agriculture has lead to a broad interpretation of the meaning sustainable [Reeve, 1990]. Again the
interpretation of sustainable agriculture as farming forever brings into question a broader consideration of what
makes a agricultural system sustainable. Australian farmers are becoming more conscious of the term sustainable
agriculture and are making a conscious effort to address this situation i.e. Land Care [Roberts, 1995]. As farmers'
attitudes are changing so is their interpretation as to the meaning and relevance of sustainable agriculture [Roberts,
The debate over the philosophies of sustainability and sustainable agriculture is an evolution of ideas.
This document has identified many assumptions as to the meaning of sustainability, which at best is a controversial
term and at worst is a oxymoron or 'false truth' [Beatley, 1994]. Therefore, the concept of sustainable agriculture is
very much in the eye of the beholder [Campbell, 1994].