Globe and Mail: 2006, the U.S. economy expanded at the real and robust rate of 2.9 per cent – a decent rate of growth for any advanced economy. Economic growth necessarily requires more consumption of energy, right? Economic growth necessarily requires more greenhouse gas emissions, right? Here’s a quick Q&A to test these environmental assumptions. Question: By what percentage did U.S. greenhouse gas emissions increase in 2006? (A) 3.8 per cent; (B) 2.9 per cent; (C) 1.5 per cent; or (D) …