Effective addressing of global environmental problems is considered to be one of the most important issues for ongoing corporate activities. In its fourth assessment report, the Intergovernmental Panel on Climate Change (IPCC) warns that emissions of greenhouse gases like CO2, if left unchecked, could cause the average global temperature to rise by 2-6 degrees C by the end of the 21st century, leaving the future of mankind at risk. Innovation by information technology (IT) is indispensable in reducing greenhouse gas emissions by 50% by 2050, and Fujitsu Laboratories initiated the development of diverse technologies for reducing the environmental load. Part of Fujitsu's development policy is to introduce its environmental perspectives into the R&D roadmap and to evaluate the development targets by life cycle assessment in order to predict the environmental load reductions beforehand. In addition, Fujitsu promotes total technology development from materials/devices to system/solutions, aiming at effective energy saving by integrating elemental technologies and building an ecological value chain. This paper outlines the latest activities of Fujitsu Laboratories toward environmental innovations.