Senator DAY (South Australia) (14:52): Mr President, I ask a supplementary question. Australia has over 1,800 turbines in 71 locations, with more on the way. Paul Hyslop, from ACIL Allen, says that Labor's 50 per cent renewable energy pledge by 2030 would require an additional 10,000 wind turbines to be built. Given that the government now knows the potential adverse health effects of wind turbines and bearing in mind the potential future liability arising from that knowledge, does the minister acknowledge that the government must now act. (Time expired)