EurActiv: As the price of EU emission allowances (EUAs) remains under 10, Ed Miliband, the UK’s energy and climate change secretary, last week joined those demanding EU measures to prop up the market. Many experts, however, have warned against such intervention. Background: Since 2005, some 10,000 large industrial plants across the EU have been required to buy and sell permits to release carbon dioxide into the atmosphere. An ’emissions trading scheme’ (EU ETS; see EurActiv …