Mr TRUSS (Wide Bay—Leader of The Nationals) (14:29): My question is to the Prime Minister. Can the Prime Minister confirm that major economies like the United States, whose greenhouse emissions make up 18 per cent of the global total, China, whose emissions make up 19 per cent, and India, five per cent, are all countries without an economy-wide carbon tax. Why is the Prime Minister introducing the world's biggest carbon tax in Australia, when we contribute just one per cent of global emissions and when Australian families are already doing it tough?