AAP: The Rudd government has little chance of meeting its 2050 greenhouse emission reduction targets if Australia’s population continues to grow, a demography expert says. Population growth was the main contributor to emissions, but had been overlooked by government, Dr Bob Birrell from Monash University said. He forecasts Australia’s population will reach 31.6 million by 2050, causing carbon emissions to rise to 800 million tonnes, four times the 2050 target. The government …