This Web Seminar took place on April 2, 2009, from 6:30 p.m. to 8:00 p.m. Eastern time. Presenting was Dr. Dwight Gledhill, a chemist with NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) Ocean Chemistry Division. In this Seminar, Dr. Gledhill focused the discussion on changes that are being observed in coral reef ecosystems that are directly attributed to climate change. For more information about this web seminar, its presenter(s), read what participants said about it, and to see and download its PowerPoint slides go here.