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 of nuclear power argue it is 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
Edited sentence: 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.Proponents of nuclear power claim it is 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