Humains needs and sustainility

The need is defined by a feeling of deprivation, of a lack that the individual wishes to fill.We can distinguish several needs : fundamental / primary / absolute and secondary / relative which are defined in the different theories.The needs are characterized as follows : they can be unlimited and evolving. Needs change according to the context of society, environmental issues and the individual. The needs are the same but it is the way to meet them that changes according to the cultural, social, historical context ...