Reuters: Australia’s Greens called for a quick parliamentary vote to defeat government plans for carbon trading on Monday, a move that could make the issue a trigger for an early general election. The carbon-trade plan is one of Prime Minister Kevin Rudd’s key reforms and a central plank of Australia’s efforts to fight global warming, but the government is struggling to find the seven extra votes it needs in parliament’s upper house Senate. “We want to see this ‘agreement to fail’ …