Introduction Trend of world population waste generation World population development Billions Billions 10 10 8 6 6 432 4321 0 0 1750 1800 1850 1900 1950 2000 2050 Developing countries GRID Arendal Industrialized countries 4907 Waste generation rate:0.5~2.0 kg/cap.d UNEPIntroduction Trend of world population & waste generation Waste generation rate: 0.5~2.0 kg/cap.d