The 2011 nuclear disaster at the Fukushima Daiichi nuclear power plant in Japan was one of the most serious in world history. A meltdown (堆芯熔毁) at the plant, sparked (引发) by a massive earthquake and tsunami waves, resulted in the leak of radioactive (放射性的) materials. The impact in the years since have been grave. And it seems that there may be even more serious consequences. On April 13, Japanese Prime Minister Yoshihide Suga announced that the government has decided to pour radioactive wastewater into the Pacific Ocean.