This document summarizes a study that modeled the environmental impacts of landfilling and incineration waste management scenarios in Odo-Oba, Nigeria using GaBi6 software. Wastes were characterized and sorted, and gas emissions from open burning at a dumpsite were measured. Two scenarios were modeled in GaBi6: landfilling and incineration. The landfill model showed that paper contributed most to global warming and eutrophication potential, while biodegradables and plastics dominated acidification and ozone depletion potential, respectively. The incineration model found that plastics contributed most to acidification, global warming and eutrophication potential. The study concluded that the landfill scenario posed a lesser environmental threat