From New Scientist:
“Brexit puts the future of the world’s largest nuclear fusion reactor, based in Oxfordshire, in doubt. By leaving the European Union the UK might also exit Euratom, the EU’s framework for safe nuclear energy.
“It would be bizarre and extreme for the UK, which has been at the forefront of fusion research for 50 years, to just leave these projects,” says Ian Chapman, CEO of the UK Atomic Energy Authority. “It would make no sense strategically.”
The UK government has yet to say what its plans are for cooperating with Euratom, but part of the Brexit negotiations will have to include the nuclear fusion experiment JET. Decommissioning JET is expected to leave around 3000 cubic metres of radioactive waste, which would cost around £289 million to deal with, according to the UKAEA.”