sustainable development

suppose for the present that a particular country is quite developed. we would certainly like this level of development to go up further or at least be maintained in future generation . 

however,since the second half of twentieth century , a number of scientist have been warming that the present type and levels of development are not sustainable.groundwater is an example of renewable resources. these resources are replenished by nature as in the case of crops and plants. however even those resources may be overused . foe example , in case of groundwater. if we use more tan what is being replenished by rain then we would by overusing this resources. non renewable resources are those which will get exhausted after years of use . we have a fixed stock on earth which cannot be replenished. we do discover new resources that we did not know of earlier. now resources in this way add to stock . however overtime, even this will get  exhausted.consequences of environment degradation do not respect national or state boundaries; this issue is no longer region or nation specific. our future is linked together. sustainability of development is comparatively a new area of knowledge in which scientist, economist, philosphere and other social scientist are working together . at all times a number of society and as individual we need to become and what our goals are.