Original sentence: Opponents argue against its use due to the long term problems of storing radioactive waste, the potential for severe radioactive contamination by an accident, and the possibility that its use will lead to the proliferation of nuclear weapons.Proponents argue that these risks are small, have advantages like little air pollution, and that it is currently the only realistic large scale energy source that can replace fossil fuels if they become depleted through peak oil or discouraged because of environmental problems such as global warming
Edited sentence: It is disputed whether the risks of nuclear power can be mitigated through new technology.Its use is controversial due to the long term problems of storing radioactive waste, the potential for severe radioactive contamination by an accident, and the possibility that its use will lead to the proliferation of nuclear weapons.Nuclear power generates relatively little air pollution.Nuclear power may be the only energy source that can be built out rapidly if fossil fuels become depleted through peak oil or discouraged because of environmental problems such as global warming