Research in the Glaser group focuses on the technical aspects of nuclear-fuel-cycle technologies and policy questions related to nuclear energy and nuclear-weapon proliferation. New nuclear reactor concepts and fundamentally different approaches for the management of nuclear energy may be necessary to manage a growing and diverse nuclear energy sector. Glaser and colleagues also work on improving the characterization of nuclear power in models for climate policy-making. They examine how nuclear power is implemented in these models with particular attention to the assumptions made about availability and costs of uranium resources, the costs of reprocessing and the capital cost difference between light-water and breeder reactors. This also includes examining the sensitivity of modeling results to alternate assumptions about key parameters. Research in this area will clarify the role of nuclear power vis-à-vis its competitors and also help set priorities for what kinds of nuclear technologies should be developed.