Resource Use and Sustainability
Overview
Sustainability with respect to the use of resources has two components: (1) how is the rate of resource use related to the overall stock of resources, and (2) what portion of resources in use are lost to the environment. The first component assumes critical importance in the United States. In 1990, the average American was responsible for the extraction and employment of over 50 kilograms (kg) of material daily, more than anywhere else in the world. Ten years later, the quantity has increased by about 10%, and some of the associated environmental impacts have increased as well. The lack of conscious efforts and proactive policies has promoted what appears to be unsustainable behavior. Overall, however, no attempt has been made to define sustainability in quantitative terms, to set goals for improvement, and to measure progress toward these goals. A variety of activities characterized as sustainable have been proposed, and clearly would be beneficial. Until precise measures are taken to address and understand sustainability, however, the United States and the world will have no clear picture of how sustainable or unsustainable they are, whether or not they are moving in the right direction, and when resource sustainability will be achieved.