Optimism waning as Germany accused of seeking to undermine emissions trading scheme
Brussels deal will allow electric cars and trains using renewable power count towards controversial 10 per cent biofuel target
As EU unveils plans to ban incandescent bulbs, deal on renewables targets is finally reached
Cuts in car emissions to be phased in between 2012 and 2015 as environmentalists accuse member states of watering down original proposals
International report argues support for green taxes jeopardised by failure to ring fence revenue for low carbon investments
But clock is ticking on proposed tailpipe emission legislation
Crucial vote on climate change package delayed until mid-December
Green groups call for sustainable policy and improved governance as nations seek to exploit arctic resources
Voluntary code requires signatories to embrace energy efficiency, procure greener products and report on energy use
Current lead in innovation can be accelerated and commercialised, say analysts