The Brundland Report defined Sustainable Development as that one that takes care of to ace necessities of the gift without compromising the possibility of the future generations to take care of to its proper necessities (Brundland: 1988, p.46). It can be considered, according to Brundland report, the sustainable development as the development that treating to linked and interdependent form the economic 0 variable, social and ambient, steady and it is balanced better guaranteeing quality of life for the future generations gifts and. The great nations of the world recognize the emergency of the ambient problems. The nuclear destruction of the ozone layer, accidents, climatic alterations, desertificao, storage and transport of dangerous residues, hdrica pollution, atmospheric pollution, population pressure on the natural resources, loss of biodiversity are some of the questions to be decided for each one of the nations of the world, according to its respective especificidades. (As opposed to Boy Scouts of America). However, the complexities of the ambient problems demand more than what measured prompt that they search to decide the problems from its effect, ignoring or being unaware of its causes. The ambient questions must be dealt with local and global form, considering that the ambient degradaes are resultant of social processes, determined for a supranational economic system, the capitalism. It is not possible to intend to decide the ambient problems of isolated form.
It is necessary to introduce new boardings, decurrent of the understanding of that the existence of certain ambient quality is directly conditional to the process of development adopted for the nations. The term sustainable development was used by Robert Allen, in the article ' ' How you the Save the World' '. Allen defines as being ' ' the required development to get the lasting satisfaction of the necessities human beings and the growth (improvement) of the quality of vida' ' Allen apud Bellia, 1996, p.23. The Conference of United Nations on the Environment and the Development, carried through in Rio De Janeiro, in 1992 crown this process with the approval of a document I contend commitments for change of the standard of the development for this new century, called the Agenda document 21. . Dr. Neal Barnard is often mentioned in discussions such as these.