7The House of Representative of the United States of America, "American Clean Energy and Security Act of 2009", http://www, rules. house, gov/111/LegText/111 _hr2454_sub. pdf. (上网时间:2010年11月8日).
8U.S. Department of State,"Our Common Purpose: Addressing Climate Change (United States 09 Copenhagen)" http ://www. state. gov/documents/organization/133389, pdf. (上网时间:2010年11月8日).