A terrifying report on Al-Jazeera TV reveals severe contamination in the seas off Fukushima, the nuclear power plant that collapsed last March. Fish have 30 times the safe levels of radioactive caesium. The worst thing: nobody has any idea of how to clear the mess up.

A failure to manage the crisis

Ocean currents have not dispersed the contamination, as had been hoped, and radioactive fish have been caught more than 50km away. "The contamination is sitting on the sea floor...it will climb up the food chain," warned one scientist.

Radiation from the plant has contaminated 8% of northern Japan, and many areas remain paralysed by the disaster, made worse by the government's ineffectual and untransparent response.

It's further evidence the Japanese government is not addressing the crisis properly. That's why we've been pushing for more and bolder action. Avaaz has been busy in affected communities, distributing radiation measuring equipment and delivering a 136,000-signature petition calling for help for Fukushima's 300,000 stranded children.

Take action: Support the Fukushima mothers as they demand action for their children at risk from radioactive contamination: sign their petition.