On April 22, 1970, the first Earth Day was marked by a nationwide "teach-in" on the environment, community demonstrations in favor of environmental reform, and a CBS News special narrated by Walter Cronkite. Six months later, on October 3, 1970, Congress established the National Oceanic and Atmospheric Administration (NOAA), unifying three of the nation's venerable science agencies--the U.S. Coast and Geodetic Survey, the Weather Bureau, and the Bureau of Commercial Fisheries. As it turns out, not only does much of America's scientific heritage reside within NOAA; in many ways, every day is Earth Day here....