Daily Archives: March 20, 2011


This week the Japanese nuclear authorities announced that the partial meltdowns at four of Fukushima I’s reactors would be raised to a ‘category 5’ incident. I had never come across this scale before and, whilst it clearly relates to the seriousness of the incident, I didn’t know what it was out of, or what the criteria were. The scale is the International Nuclear and Radiological Event […]

Red alert