Bloomberg: Australia’s proposed carbon trading market may be worth as much as A$11 billion ($10.7 billion) by 2012, assuming similar growth to that in the European Union, according to Point Carbon. Australia may allocate about 540 million metric tons of allowances a year starting in 2010, valued at about A$10.3 billion or A$19 a ton, Point Carbon said today in an e-mailed statement. It would take three years for the value of traded allowances to reach about $A11 billion, it said. The …