Senator DI NATALE (Victoria—Leader of the Australian Greens) (14:16): My question is for the Minister representing the Minister for the Environment and Energy. Today the Prime Minister said that there's been 'a colossal failure in the planning of our energy system', and we Greens absolutely agree. It's hardly a surprise when the government's destroyed the long-term price signal; slashed the Renewable Energy Target with the support of the Labor Party, turning away international clean-tech investors; and created enormous uncertainty in the energy sector. Given that Malcolm Turnbull's energy plan now consists of nothing more than extending the life of a polluting coal plant when even its owners want to shut it down, why isn't this just another colossal failure in the planning of our energy system?