Sydney Morning Herald: The federal government has dramatically stepped up efforts to save the dying lakes at the mouth of Australia’s biggest river system, agreeing to buy up water-hoarding properties and send the water downstream. Federal cabinet has agreed to a suite of new measures in a last-gasp bid to save the Murray-Darling’s lower lakes from turning into acid or being flooded with seawater. The government would try to buy out “appropriately located irrigation properties”, Prime Minister Kevin …