Environment minister slams 'unacceptable' EU efforts to impose carbon levy on flights
Record volumes of trading fail to compensate for plummeting carbon prices
New EU data confirms emissions fell 2.6 per cent last year, prompting carbon price to fall to record low of just over €6 a tonne
Green groups welcome trade body's decision but condemn call for the Obama administration to continue opposing emissions trading
Exec says Brussels is mistaken to pursue regional approach to cutting emissions, as bosses reiterate commitment to sustainable development
Open letter from 26 leading economists says President should drop US opposition to emissions trading
Shell, Tesco, Unilever and EDF among those calling on Osborne to demonstrate commitment to green economy
Spectre of a trade war looms large as Beijing reportedly blocks purchase of 10 Airbus A380s as a retaliatory measure
Polish environment minister writes to counterparts urging them to reject push for 25 per cent emission reduction target
International meeting concludes without agreement on market-based measures