EU Emission Allowance

Prince of Wales's EU Corporate Leaders Group on Climate Change calls on EU Commissioners to redouble green growth efforts

Analysis suggests increasing EU 2020 CO2 reduction target would cost 0.03-0.04 per cent of EU GDP per year

Record volumes of trading fail to compensate for plummeting carbon prices

Airlines with a registry account receive almost five million permits to help them comply with EU emissions trading rules

Proposal to deal with surplus of carbon permits will be assessed by parliament and ministers after backing from committee

Energy efficiency directive would withhold permits to help reduce surplus, but final decision rests with ministers

Amendment could see permits held back to reduce surplus following vote later this month

Analysts warn prices are likely to remain in doldrums for 12 months as certified emission reduction credits reach €3.32 a tonne

Analyst predicts average EU allowance price in third phase of EU's Emissions Trading Scheme will be €12 per tonne

Analysts say record lows could worsen if Eurozone debt crisis escalates