Scientists to build a new prototype nuclear fusion reactor

If successful, the project could be the answer to the world’s clean energy needs.

A global partnership of scientists is building the first prototype nuclear fusion reactor in southeast France.

At a cost of at least $24bn, the project could be the answer to the world’s clean energy needs when it is switched on – but that won’t be for another 17 years.

Engineers say the project is so complex and expensive that they fear delays could cause countries to withdraw funding.

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