Details of controversial levy to be announced on Sunday, alongside plans for new clean tech investment fund
Who will be affected, how much will ticket prices rise, and will emissions be cut - BusinessGreen answers the key questions
State-wide cap-and-trade scheme will not come into full effect until start of 2013
Think tank warns chancellor George Osborne's UK-only carbon floor price would simply shift emissions to other parts of the EU
CER market continues recent volatility with dip below €10 mark before strong recovery
Appeal court ruling allows regulators to continue work on state-wide emissions trading scheme
Neither side backs down in Oslo talks, with EU insistent aviation will be part of its emissions trading scheme from next year
Russia could join China and the US in speaking out against aviation emissions being included in EU's cap and trade system
European Commission estimates energy-intensive sector will have accumulated allowances worth €7-12bn by the end of 2012
New security measures for emissions trading scheme proposed to avoid repeat of cyber fraud