Canberra Times: A TWO-THIRDS cut in household greenhouse gas emissions would still not achieve Federal Government carbon targets because the population is growing too fast, a study into immigration policy and climate change contends. By 2050, when Australia plans to have cut its total emissions by 60 per cent, the population will have risen to just over 30 million unless immigration policies change radically, said Bob Birrell, director of the Centre for Population and Urban Research at Monash …