SBS: The Opposition has taken a gamble before the July 2 poll, and opened itself up to attacks from the Coalition, by announcing its climate change pledge. Under the plan, an ALP government would commit to a 45 per cent emissions reduction target (on 2005 levels) by 2030. That's compared to the 26-28 per cent target set by the Federal Government. Labor is also pledging that a Labor government would by 2030 make sure 50 per cent of Australia's electricity is sourced by renewable energy. Opposition...