Business Green: The integrity of the EU’s emissions trading scheme could be badly undermined unless governments resist the temptation to sell on “recycled” certified emission reduction (CERs) credits that have already been surrendered by businesses. That is the stark warning from the International Emissions Trading Association (IETA), after the Hungarian government last week agreed to sell on two million “recycled” CERs to an undisclosed intermediary. Government officials confirmed the CERs …