Barack Obama would issue Congress with 18 month ultimatum on carbon regulation before effectively bypassing the legislature
Cap and trade rejected in short term as firms set their own reduction targets
Businesses are urging the government to use its carbon credit income to fund cleantech innovation
Leaders claim they will stick to carbon targets, but Italy and Eastern Europe insist more should be done to protect polluting industries
Study predicts new carbon markets in US, Japan and Australia will see global price of carbon increase 53 per cent by 2020
MEPs vote in favour of tougher carbon emission rules, but opposition to wide-reaching programme in some member states is strengthening
Price of EUAs clears €25 per tonne on back of remarkable rally in oil
Experts predict price of EUA credits to rise to €37, as carbon offers safe haven to nervous traders
As price of carbon slips in wake of Wall Street crisis, experts insist carbon credits could prove safe long-term bet for nervous investors
Ongoing row between EU and UK over ring-fencing of revenue raised through ETS is set to intensify