Japan will start releasing treated radioactive water from the tsunami-hit Fukushima nuclear plant into the Pacific Ocean on Thursday, despite opposition from its neighbours. The decision comes weeks after the UN’s nuclear watchdog approved the plan. Some 1.34 million tonnes of water – enough to fill 500 Olympic-size pools – have accumulated since the 2011 tsunami destroyed the plant. The water will be released over 30 years after being filtered and diluted. Authorities will request for the plant’s operator to “promptly prepare” for the disposal to start on 24 August if weather and sea conditions are appropriate, Japan’s Prime Minister...