• Comparison of Legislative Climate Change Targets in the 110th Congress (World Resources Institute, December 7, 2007)
• Clean Air and Climate Protection (CACP) Software's Users' Guide (Large file - 35 MB)
• Side-by-Side Chart of Current Global Warming Legislation (June 24, 2008)

• World Resources Institute: Climate, Energy and Transport page
• The Climate Registry
• EPA’s Greenhouse Gas Reporting Rule
• “Shrinking the Carbon Footprint of Metropolitan America” - A report from the Brookings Institution examining the potential of metropolitan areas to address energy and climate challenges.

The following links are information resources on various reporting protocols used when developing greenhouse gas inventories.

• The Climate Registry General Reporting Protocol
• World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD), The Greenhouse Gas Protocol, A Corporate Accounting and Reporting Standard (Revised Edition)
• California Climate Action Registry General Reporting Protocol (March 2007)
• U.S. EPA Climate Leaders Cross-Sector Guidance
• Senator Lieberman’s climate change page: Includes links to several analyses of the Lieberman-Warner Climate Security Act.