US Senate

Senate delay means no bill likely before Copenhagen

Democrats insist the show must go on, despite Republicans' refusal to attend mark-up meetings

Solar Technology Roadmap Act now faces Senate vote

Move met with opposition from Baucus and Inhofe

As leading Republicans dig their heels in, President Obama insists a consensus is building in favour of carbon legislation

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

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

Senior Democrats are attempting to secure backing for the Boxer-Kerry climate bill

As Obama preps energy policy, Senate confirms latest version of Waxman-Markey not expected until late September

But green groups accuse senators of watering down proposals as part of compromise package