3.1 Australia required that incandescent light bulbs be phased out by 2010 in favor of the more fuelefficient compact fluorescent bulbs. Ireland’s ban started in 2009, and the United States started phasing out incandescent bulbs in 2012. These restrictions were designed to reduce carbon and global warming. What alternative approaches could be used to achieve the same goals? What are the advantages and disadvantages of a ban relative to the alternatives?