A second hydrogen blast occurred at the Fukushima Daiichi nuclear plant in northern Japan at 11 a.m. local time March 13, but the explosion in the reactor building of Unit 3 left the primary containment vessel intact, says the the International Atomic Energy Agency. The unit’s control room remains operational, says the IAEA. A hydrogen gas blast at Unit 1 on Saturday destroyed that unit’s containment building’s outer shell but also did not damage the core reactor building, say Japanese officials. Late on March 13, officials of the Tokyo Electric Power Co. (TEPCO) were attempting to reduce the concentration of
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.