Australian: AUSTRALIA’S energy policy debate is about to erupt. The emissions trading system pledged by Kevin Rudd looms as a policy nightmare that means higher energy and transport prices. And now an old demon has re-emerged, with demands Australia should go nuclear. No, this isn’t John Howard. It is the pro-green Bob Carr and the youthful Paul Howes, who runs the Australian Workers Union. And they are far more strident about the need for nuclear power than Howard was before last year’s …