Second National Climate Assessment: Key Findings Print E-mail

An affiliated website was created specifically for the 2009 National Climate Assessment so that the report would be more accessible to a variety of interested readers.

Visit the "Executive Summary" page on the 2009 National Climate Assessment website to find more information on the following key findings from the report:

  1. Global warming is unequivocal and primarily human-induced.

  2. Climate changes are underway in the United States and are projected to grow.

  3. Widespread climate-related impacts are occurring now and are expected to increase.

  4. Climate change will stress water resources.

  5. Crop and livestock production will be increasingly challenged.

  6. Coastal areas are at increasing risk from sea-level rise and storm surge.

  7. Threats to human health will increase.

  8. Climate change will interact with many social and environmental stresses.

  9. Thresholds will be crossed, leading to large changes in climate and ecosystems.

  10. Future climate change and its impacts depend on choices made today.
Click here to download the "Executive Summary" chapter from the report