Australian Broadcasting Corporation: Prime Minister Kevin Rudd says he is not surprised by criticism of Ross Garnaut’s proposed emissions reduction targets. Two Australian scientists who sit on the UN’s climate change panel have attacked Professor Garnaut’s view that Australia should cut emissions by 10 per cent by 2020. They argue that target is weak and will not minimise dangerous climate change. Mr Rudd says there is always going to be “argy bargy” in the political debate. “It’s going to be tough, …