He is a Visiting Professor at the Harvard Graduate School of Design Department of Landscape Architect and Distinguished Professor of Ecology at Rutgers University. Handel is the Editor of the national journal Ecological Restoration, an Aldo Leopold Leadership Fellow of the Ecological Society of America, and an Honorary Member of ASLA. He received his B.A. in biology at Columbia University and Ph.D. in ecology and evolution at Cornell University. He has received ASLA Honor Awards for Analysis and Planning, Research, and Communications, and the Theodore Sperry Award for his urban restoration work from the Society for Ecological Restoration.