EPA is looking for public comment on the annual Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2008 draft report. This annual report is prepared by EPA in collaboration with experts from other federal agencies. After responding to public comments, the U.S. government will submit the final inventory report to the Secretariat of the United Nations Framework Convention on Climate Change (UNFCCC). The report will fulfill the annual requirement of the UNFCCC international treaty, ratified by the United States in 1992, which sets an overall framework for intergovernmental efforts to tackle the challenge posed by climate change.