The National Climate Assessment (NCA) acts as a status report on climate change science and impacts based on observations made across the country. It incorporates advances in the understanding of climate science into larger social, ecological, and policy systems and serves to integrate scientific information from multiple sources and highlight key findings and significant knowledge gaps. The United States National Climate Assessment - Alaska Technical Regional Report is one of eight regional reports that will provide input to the 2013 National Climate Assessment. This report reviews current climate related changes that have occurred across the Alaskan landscape; synthesizes relevant and new science and information since the last Alaska regional report (1999); and provides outlooks and projections of climate-related conditions (temperature, precipitation, snow cover, growing season, and permafrost extent). Contents of this report are based on published scientific research that is in the public domain, of which have been reviewed and summarized by over 40 contributing authors. The information that this report provides is intended to help policy makers, land managers, and the general public become more informed about the current and potential effects of climate change in Alaska.
