Democratic leaders launched a last gasp effort today to try to resurrect a climate change bill before Congress, which is seen as vitally important in sealing a global deal to tackle global warming. Although the bill had virtually been pronounced dead for 2010 Senator John Kerry fuelled speculation that Democrats will take one last run this spring at trying to get Congress to act on one of Barack Obama's key campaign promises. "We are on a short track here in terms of piecing together legislation that we intended to roll out," Kerry told an energy forum in Washington DC. Some...