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Italian scientists' bid to use nuclear fission as energy source | Video

As COP28 kicks off in Dubai, there’s a strong focus on investment in renewable energy sources such as solar and wind. But for many, the “holy grail” of clean energy is nuclear fusion. It generates more energy than nuclear fission, which is used in nuclear power stations, and produces no radioactive waste. Giles Gibson meets the Italian scientists involved in an international effort to build a nuclear fusion reactor.