Trammell S. Crow, who transformed Earth Day Dallas into the largest Earth Day celebration in the world, will talk about Earth Day Texas, its purpose, its importance and plans for the future.  He supports various non-profit organizations that are active in family planning, education, the environment, community initiatives and political causes. All welcome. Info: Kirk Miller, 972-699-1687, KirkMiller@DallasSierraClub.org.