Spending billions on unclean, risky energy? What a nuclear waste | Letters

Readers respond to the energy secretary’s announcement of the new £14.2bn Sizewell C power station and Rolls-Royce winning the contract to develop small modular reactorsRolls-Royce pressurised water reactors have powered British nuclear subs since 1966, but small modular reactors (SMRs) aren’t yet proven at scale anywhere on land (Rolls-Royce named winning bidder for UK small nuclear reactors, 10 June). Only three are operating worldwide: two in Russia, one in China. Argentina