The document discusses the clean energy economy in the United States and globally. It provides statistics on clean energy jobs and investments in the U.S. and other G20 countries from 1998 to 2009. The U.S. led in clean energy jobs in 2007 with over 770,000 jobs. However, the document warns that without sufficient federal policy that provides long-term market signals, such as a national carbon cap and renewable energy standards, the U.S. risks falling behind other countries in the growing global clean energy market.