"Carbon dioxide emissions, the main driver of global warming, could fall 3 per cent worldwide in 2009 due to the global economic crisis, the International Energy Agency (IEA) has said. This would be the steepest drop in CO2 emissions for 40 years, chief IEA economist Fatih Birol said at a press conference in Bangkok, adding that the average annual growth in global carbon output until now has been 3 per cent." (Quoted from article)