In this report the Natural Resources Defense Council (NRDC) has compiled local and regional research findings about the water-related impacts of climate change in 12 U.S. cities. NRDC examined more than 75 scientific studies, as well as data and reports generated by government agencies and nonprofit organizations. The report makes clear that some of the most profound effects of climate change are water-related, such as sea-level rise, increased rain and storms, flooding, and drought, and that these kinds of events are likely to increase in the coming years as a result of climate change.  The cities analyzed were chosen for their geographic diversity and range in size, and include: New York, Boston, Norfolk (Virginia), Miami, New Orleans, Chicago, St. Louis, Seattle, San Francisco, Los Angeles, Phoenix, and Homer (Alaska).  Each chapter of the report examines one of these cities in detail.  In addition to a thorough summary of the impacts afflicting each city, a review of what these municipalities are doing in terms of preparedness planning and their solutions are provided..