Original sentence: Also, one study focusing on leukemia clusters in industrial towns in England indicated a link to high-capacity electricity lines suggesting that the production or distribution of the electricity, rather than the nuclear reaction, may be a factor.Critics also point to the problem of storing radioactive waste, the potential for possibly severe radioactive contamination by accident or sabotage, and the possibility of nuclear proliferation.Likewise, small studies have found an increased incidence of childhood leukemia near some nuclear power plants has been found in Germany and France.One study of those near Sellafield has ruled out any contribution from nuclear sources, and the reasons for these increases, or clusters, are unclear.Proponents of nuclear energy respond that nuclear power is a sustainable energy source that reduces carbon emissions and increases energy security by decreasing dependence on foreign countries for energy sources.Some areas of Britain near industrial facilities, particularly near Sellafield, have displayed elevated childhood leukemia levels, in which children living locally are 10 times more likely to contract the cancer.The two most well-known events are the Three Mile Island accident and the Chernobyl disaster.They further claim that the safety record is already good when compared to the other major kinds of power plants and that many renewables  have not solved the problem with their intermittent power production, in effect limiting them to a minority share of power production
Edited sentence: Also, one study focusing on Leukemia clusters in industrial towns in England indicated a link to high-capacity electricity lines suggesting that the production or distribution of the electricity, rather than the nuclear reaction, may be a factor.However, in Britain there are elevated childhood leukemia levels near some industrial facilities, particularly near Sellafield, where children living locally are ten times more likely to contract the cancer.Likewise, small studies have found an increased incidence of childhood leukemia near some nuclear power plants has also been found in Germany  and France.The reasons for these increases, or clusters, are unclear, but one study of those near Sellafield has ruled out any contribution from nuclear sources.The two most well known events are the Three Mile Island accident and the Chernobyl disaster.They also point to the problem of storing radioactive waste, the potential for possibly severe radioactive contamination by accident or sabotage, and the possibility of nuclear proliferation.They further claim that the safety record is already good when compared to the other major kinds of power plants, that many renewables  have not solved the problem with their intermittent power production, in effect limiting them to a minority share of power production, and that nuclear power is a sustainable energy source