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
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
Receipts from emissions trading and carbon floor price could be used to create jobs, lower emissions and reduce fuel poverty
From Manchester Utd's success off the field to Lego's plans for wind turbines, we run down the key lessons of the week
Brussels sources insist they will not cave in to sabre-rattling at Moscow meeting