 The Convention on Biological Diversity discussed in the supplementary document on  Biodiversity Preservation  was influenced by  Our Common Future,  an earlier United Nations document on sustainability produced by the World Commission on Environment and Development (WCED 1987). The commission was chaired by Gro Harlem Brundtland, Prime Minister of Norway at the time, and the report is sometimes known as the Brundtland Report. This report noted the increasing tide of evidence that planetary systems vital to supporting life on earth were under strain. The key question it raised is whether it is equitable to sacrifice options for future well-being in favour of supporting current lifestyles, especially the comfortable, and sometimes lavish, forms of life enjoyed in the rich countries. As Bryan Norton puts it, the world faces a global challenge to see whether different human groups, with widely varying perspectives, can perhaps “accept responsibility to maintain a non-declining set of opportunities based on possible uses of the environment”. The preservation of options for the future can be readily linked to notions of equity if it is agreed that “the future ought not to face, as a result of our actions today, a seriously reduced range of options and choices, as they try to adapt to the environment that they face” (Norton 2001: 419). Note that references to “the future” need not be limited to the future of human beings only. In keeping with the non-anthropocentric focus of much environmental philosophy, a care for sustainability and biodiversity can embrace a care for opportunities available to non-human living things.