Bloomberg: Australia’s latest trade in carbon emissions drew a higher price than earlier transactions, said broker Newedge Australia Pty, as the government invites comment on plans to start a national system in 2010. The over-the-counter sale of 20,000 metric tons of carbon dioxide in the so-called Calendar 11 contract for settlement Feb. 1, 2012, was priced at A$21.50 ($19.32) a ton, Gary Cox, Sydney- based manager of environmental derivatives at the Australian unit of Newedge Group, said …