AAP: Australia has three key hurdles to overcome if it wants an emissions trading system to operate by its scheduled 2010 starting date, the global head of carbon emissions for Merrill Lynch says. London-based Abyd Kamali said there needed to be reliable carbon price data and information technology infrastructure. He also said the carbon services sector must have capacity to deal with the new work load in order meet the federal government’s July 1 2010 deadline to have the trading …