The over 1,000-page document is chock full of frightening statistics, the implications of which require some very sobering reflection. It's almost too much to absorb. Fortunately, The World Resources Institute has helpfully prepared a distillation of the massive report that is essential, urgent reading.
By The Numbers: Analyzing The U.S. National Climate Assessment presents the core statistics from the assessment. I will not repeat them here. Read this summary.