State of the nation's ecosystems 2008

Source: Heinz Center
"The State of the Nation's Ecosystems 2008 presents 108 indicators that describe the condition and use of U.S. ecosystems. The report focuses on key characteristics such as ecosystem area and composition, chemical and physical properties, condition of biological resources, and the goods and services that people derive from ecosystems." - home page with links to key findings, summaries, fact sheets; full report available later.