Senator McALLISTER (New South Wales) (14:01): My question is to the Minister representing the Minister for the Environment, Senator Hume. This morning on RN, the Minister for the Environment, Sussan Ley, refused to guarantee that Mr Morrison's preference for net zero emissions by 2050 would survive Mr Joyce's return as Deputy Prime Minister, saying, 'We will have discussions with the Nationals.' Have these discussions started yet?