Senators divided on whether revenue from new climate bill tax should pay for green projects or road repairs
Obama says he wants comprehensive climate and energy legislation, and he wants it this year
Republican at centre of bi-partisan effort to produce compromise climate bill says new mechanisms will be used to curb emissions
BP America, Caterpillar and Conoco end support; opponents claim climate law is dead in the water
He might not have said much about climate change, but president Obama's State of the Union address made it clear he is pushing forward with climate legislation
Former opposition leader Malcolm Turnbull set to defy party and back government in crucial climate bill vote
Moderate Democrats and Republicans increasingly confident they can secure the 60 votes needed to pass cap-and-trade legislation
Climate bill defeated in 41-33 vote, as government insists it will put the bill before the Senate for a third time on Friday
Senior White House official confirms Obama could still attend crucial climate summit
Prime Minister Kevin Rudd expresses anger at opposition's continued attempts to block cap-and-trade legislation