International Symposium on Earth Science and Technology 2008 was held in Nishijin- Plaza Fukuoka Japan between 1 and 2 December 2008. This event was organized by Cooperative International Network for Earth Science and Technology (CINEST). This symposium highlights the recent achievement in the fields of mineral resources, energy, and environment, based on earth science and engineering. The symposium includes special session on Novel Carbon Resource Sciences. This event was attended by researchers from Indonesia, Japan, South Korea, Vietnam, Thailand, Canada and Papua New Guinea. I also gave contribution to the event by presenting my paper entitled GIS-based spatio-statistical analysis on the factors influencing river turbidity around Hitotsuse area, Miyazaki Prefecture, Kyushu, Japan.