Fission Criticality In Cooling Ponds Threaten Explosion At Fukushima

The threat of a fission explosion at the Fukushima power facility emerged today when the roof of the number three reactor exploded and fears that a spent fuel pool, located over the reactor, has been compromised. The pool, designed to allow reactor fuel to cool off for several years, was constructed on top of the Fukushima reactors instead of underground. As of 2010, there were 3450 fuel assemblies in the pool at the number three reactor. The destruction of the number three reactor building has experts concerned about whether the spent fuel storage pool, which sits just below the roof, could have survived intact the hydrogen explosion. The explosion was much more severe than Saturday's blast at the number one reactor.

Venezuelan drought continuing

For most Venezuelans, the El Nino-linked drought that has struck the country this year means inconveniences like power and water rationing. But for some, the extreme dry spell is stirring up bittersweet memories. The Uribante reservoir that feeds a hydroelectric dam here is at its lowest level in decades, and the receding waters have uncovered a village that has been mostly underwater since 1985, when it was flooded. Former town resident Josefa Garcia, 74, is grateful for the drought, even though it has triggered Venezuela's worst-ever electricity crisis.