Under current USA nuclear regulations, you cannot launch any new nuclear projects unless the waste is going to go to a federally approved repository, and Obama has announced there is not going to be a federally approved repository. Hence no new nuclear projects. Obama has also announced that carbon emissions are going to be reduced sometime soon, though not yet. If less carbon, then less coal and oil. If no new nukes, and less coal and oil, then less energy usage. Less energy usage, lower standard of living.