AAP: Prime Minister Kevin Rudd says the Murray-Darling Basin shows what will happen if society buries its head in the sand rather than act over climate change. The prime minister and Climate Change Minister Penny Wong today visited the lower lakes region of South Australia’s Murray-Darling Basin to highlight the need to act on global warming, following the release yesterday of Professor Ross Garnaut’s draft report on climate change. With the ailing lake located behind him as he …