Five years ago this month a devastating tsunami engulfed Japan's northeastern coast, triggering the worst nuclear disaster since Chernobyl. scientificamerican.com French utility EDF is calling for "rapid and radical reform" of Europe's electricity market structure to allow for future investments in new generating capacity. This is needed, it says, to "face up to current challenges of the energy transition and to consumers' expectations". world-nuclear-news.org A series of measurements of the thickness of the steel walls of some of the evaporators at Areva's La Hague reprocessing plant in northern France has indicated faster than expected corrosion. The country's nuclear regulator, the Autorité de Sûreté Nucléaire (ASN), said it will monitor Areva's work to minimize future corrosion of these evaporators. world-nuclear-news.org Canada's Environment Minister Catherine McKenna has told Ontario Power Generation that their plan to build a nuclear waste repository underground on the shores of Lake Huron will require further study. nuclearstreet.com