Age: NSW power company Macquarie Generation is Australia’s biggest emitter of greenhouse gases, according to Department of Climate Change data. The company, which operates the massive Liddell and Bayswater coal-fired power stations in the NSW Hunter Valley, reported total direct (so-called ”Scope 1”) emissions of 25.3 million tonnes of carbon dioxide or other greenhouse gasses, or about 4 per cent of Australia’s total. It is the first time the figures have been collated under the …