USA

US and British negotiators insist progress has been made at latest meeting of major economies, but major differences remain

Lisa Murkowski is the second Republican Senator inside a week to break ranks and signal that she could vote for US climate change bill

Developing countries reported to have dropped calls for transfer of clean tech Intellectual Property

Senior officials and influential Senators indicate they are still hopeful that a US climate bill can be passed before Copenhagen

Energy secretary praises firms that have quit US Chamber of Commerce in protest at its opposition to climate legislation

But Bangkok talks end with deadlock over financing and targets unresolved

Norway becomes first rich nation to meet developing world demands for 40 per cent cut in emissions by 2020

Representatives of over 150 of America's largest firms step up campaign in favour of US climate legislation

China and US clash over US plan for new legal framework that would allow countries to set their own emissions targets

All branches of government to set binding emissions targets for 2020 within next 90 days