Age: GLOBAL greenhouse gas emissions are growing far more rapidly than even the most pessimistic estimates developed by the Intergovernmental Panel on Climate Change, the Government’s adviser on global warming warned. Professor Ross Garnaut has projected that by 2030 annual greenhouse gas emissions would be 14% higher than the panel’s worst-case scenario. In a yet-to-be-finalised academic paper, Professor Garnaut and three colleagues estimate that annual emissions of carbon dioxide …