This research focuses primarily on the environmental impacts of Waste Electrical and Electronic Equipment (WEEE; e-waste) in both developing and developed countries. In the case of developing countries, it estimates emissions their impacts on human health, environment, and ecosystems due to the poor practices as seen in several countries of the treatment and disposal of WEEE; in addition to examining the estimated inventories of emission, particularly toxic metals. The scope of this project considers both the traditional approaches to WEEE handling and state-of-the-art technologies. Environmental assessment through the life-cycle thinking, material, and substance flow analysis are studied. The project also aims to develop approaches for proper WEEE handling, resource conservation, cleaner production, and approaches to positive impacts on the economy. Project updates are available ResearchGate.