Reuters: An irrigation farm larger than Singapore and sucking up billions of liters of water each year has been bought by Australia’s government to help save one of the country’s most vital rivers from a slow death and climate change. Toorale Station, a cotton farm covering 910 sq km (351 sq miles) in the west of New South Wales state, was sold to the national and state governments for almost US$19 million, one day before it was set to go to auction. The purchase will allow 20 …