Join Urban Forestry Today on September 12 at noon Eastern time online for a free webcast Tree Growth & Development in a Changing Climate with Chuck Cannon, PhD, of the Morton Arboretum. How are researchers employing high and low-tech means to better understand factors like tree growth, root development and sap flow? Join Director Chuck Cannon for an update from the Center for Tree Science at The Morton Arboretum.  To sign up visit http://www.urbanforestrytoday.org/home.html