From Scenta.co.uk: The row over the working of the European Union’s emissions trading scheme intensified last night when EDF Energy warned that speculators risked turning carbon into a new category of sub-prime investment.

Vincent de Rivaz, the chief executive of the UK arm of the French-owned gas and electricity group, said politicians and regulators needed to revisit the way the ETS was working and whether it was bringing the results they wanted. …. Full Article: Source