Senator BIRMINGHAM (South Australia—Minister for Finance, Vice-President of the Executive Council and Leader of the Government in the Senate) (15:38): We will continue to invest in those areas that are essential for environmental protection. I don't accept the assertions or the way in which the Greens have made their own budget calculations. It will come as little surprise to anybody that I'm not accepting the assertions or the ideas that the Greens' budget calculations are likely to be accurate, truthful or honest. I give the commitment that our government continues to invest in practical environmental initiatives to improve our landscape across Australia, to protect our oceans, to deal with waste and to reduce emissions. The PRESIDENT: Senator Hanson-Young, a final supplementary question?