Reuters: Australia’s government on Thursday came under renewed pressure to delay plans for carbon trading, with the nation’s leading industry body saying the global downturn made a 2010 start unrealistic. Australia plans to introduce carbon trading in July 2010 as the central plank of its efforts to cut greenhouse gas emissions, blamed for global warming, by at least five percent by 2020 from 2000 levels. The Australian Industry Group, which represents manufacturing, engineering and …