Senator DI NATALE (Victoria—Leader of the Australian Greens) (14:19): Mr President, I ask a supplementary question. Given that the new Prime Minister said he would only lead a party that was as committed to action on climate change as he is, and given that this government's targets are half of those that are required to tackle catastrophic global warming, will the government review its targets, or were the new Prime Minister's words just empty, hollow rhetoric and more of the same?