Language is central to conceptualization of the world, its interpretation, and to the ways in which it may be understood and changed, especially in times of crisis. In addition to the words for objects and phenomena, language provides an understanding of a culture's connotations, associations, emotions and value judgements, thereby defining an ecosocial world, including group identity, status and world view. This articulation is achieved in different ways by different cultures, in response to different environmental and social circumstances, and is sustained through the language used. The diversity of languages around the world is a reflection of the diversity of understandings required to interpret the world under different circumstances.