Original sentence: Its use in human society is controversial.Nuclear power is energy generated from nuclear reactions or decay of an atom nucleus.Opponents argue against it due to various risks and that there are better alternatives.Proponents argue that these risks are small and that for various reasons nuclear power is currently a better or more realistic energy source than alternatives
Edited sentence: It is disputed whether the risks of nuclear power can be mitigated through new technology.Nuclear power and some types of renewable energy may be the only energy sources that realistically can be built out rapidly in the future if fossil fuels begin depletion after peak oil, or become discouraged because of environmental problems such as global warming as they both generate relatively little greenhouse gases.Nuclear power is energy generated from nuclear reactions or decay of an atom.Nuclear power's use is controversial because of the long term problem 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