1. What percentage of nuclear power plants in operation today are based on nuclear fusion? 2. Sustained nuclear fusion has yet to be achieved and remains a hope for abundant future energy. Yet the...

1. What percentage of nuclear power plants in operation today are based on nuclear fusion?

2. Sustained nuclear fusion has yet to be achieved and remains a hope for abundant future energy. Yet the energy that has always sustained us has been the energy of nuclear fusion. Explain.