This 20-page booklet provides a high-level compendium of Climate Change Impacts in the United States: The Third National Climate Assessment. The Overview covers the most important impacts at the national level but does not attempt to provide a comprehensive summary of the entire assessment. Numbered references can be found in the Highlights. To supplement this Overview, regional fact sheets are available that offer highlights from each of the eight regions. These and other resources can be found by clicking here. To download a high-resolution version of the Overview, please click here (warning: file is large).