The toxic red sludge spill in Hungary that killed four people on Monday could take a year to clean up, authorities there said. Meanwhile, workers are still trying to stop the spill from spreading to the Danube and Raba rivers.
You might not know what alumina is – neither did I. But hundreds of Hungarians now do, after torrents of the stuff poured out of a plant and through their villages, prompting the country to declare a state of emergency.