Future Projection of Domestic Solid Waste Generation in Guam by Using Input-Output Table - Analysis on effect of changes in population and tourism -

Abstract

 Pacific island country without having manufacturing industry emphasizies on tourism industry which utilizes the natural resources. Island country imports lots of foods and commodity goods from oversea countries to supply for tourists during their stays, moreover, changes in resident's lifestyle from 'thrift type' to 'waste type' increases the amount import even more. The goods consumed by resident or tourist, has been disposed and stored in the island, and at present, the stored waste causes environmental pollution and landscape deterioration. Since small island country has difficulty in constructing final landfill, it is important to prevent waste generation due to construct a sound material-cycle society with a view of collaboration with foreign countries. For this purpose, by considering development in island economy and change in lifestyle of island people, it is necessary to identify the quality and quantity of solid waste which is generated at the present and future.
 In this research, Guam, a territory of U.S., is targeted. First of all, input-output table is developed to grasp the current economic situation of the island, and secondly, scenarios which are composed of changes in population of residents, future number of tourists, and expenditure to tourism industry are created. Then, the amount of discharged future household waste is estimated by considering economic ripple effect under the scenario.