West Australian: Australia should cut its greenhouse gas emissions by at least 10 per cent of year 2000 levels by 2020, the Federal Government’s chief adviser on the issue has proposed. But Professor Ross Garnaut, in a report on the targets and trajectories for greenhouse emission cuts released today, said if key parts of WA including the Ningaloo Reef were to be saved much deeper cuts that had international support would be needed. The report proposed that under a global agreement that sought …