Abstract

Transdisciplinary analogies and metaphors are potential useful tools for thinking and creativity. The exploration of other conceptual philosophies and fields can be rewarding and can contribute to produce new useful ideas to be applied on different problems and parts of reality. The development of the so-called 'sustainability' approach allows us to explore the possibility of translate and adapt some of its main ideas to the organisation of human language diversity. The concept of 'sustainability' clearly comes from the tradition of thinking that criticises the perspective of economic development that overlooks almost totally the natural environment -the precise context where this development takes place -and which thus leads it to a final end devoid of resources and clearly harmful for the life of human beings. Against this economicist view, which is blind to its very important side effects, some academic and activist enclaves have proposed the perspective of 'sustainable development' or 'lasting development'. In other words, they have theorised, constructed, and begun to practice an economic and urbanistic development respectful of, integrated into, and in keeping with the dynamics of nature. Such perspective provides a way of improving the material aspects of human life while at the same time not damaging other environmental aspects still more necessary and fundamental for the quality —and even for the simple possibility- of human existence. In fact, the view is a synthesis of possible opposed patterns. It does not renounce material and economic improvement, but nor does it exclude a fully healthy environment that is appropriate for the continuation of the species. If we now try to transfer and to apply this way of thinking to the linguodiversity reality, are there useful analogies and metaphors to be made? We believe there are, and ones that can be used to good advantage, and linked, moreover, to the traditions of thought that have always been present but perhaps even more so these last years with the drive to develop the thinking we are calling ‘eco-linguistic’. From the outset, we would underscore the will to connect apparent ‘opposites’ in an integrative conceptualisation, such as the very syntagm ‘sustainable development’. On the sociolinguistic plane, our debate should probably be about our ‘opposites’, which could be on the one hand the expansion of the dominant languages and, on the other hand, the maintenance and development of human linguistic diversity.