Boxer Kerry

Top aide says bipartisan talks are delivering "very encouraging" results

Yes Men group calls spoof press conference to highlight business group's opposition to climate legislation

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

New analysis suggests price of carbon in a US cap-and-trade scheme is unlikely to rise above the price floor proposed in the new climate bill

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

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

Market steady as US unveils Boxer-Kerry climate bill

Legislation outstrips Waxman-Markey with proposal for 20 per cent emission cuts by 2020

Barbara Boxer and John Kerry will provide fresh impetus to US push for domestic climate legislation