The Greening of Detroit is a 501(c)(3) non-profit environmental organization whose mission is to inspire the sustainable growth of a healthy urban community through trees, green spaces, healthy living, education, training and job opportunities. The Greening serves communities in Detroit, Highland Park and Hamtramck, Michigan.

Urban forestry is the care and management of single trees and tree populations in urban settings for the purpose of improving the urban environment. Urban forestry involves both planning and management, including the programming of care and maintenance operations of the urban forest. Urban forestry advocates the role of trees as a critical part of the urban infrastructure. Urban foresters plant and maintain trees, support appropriate tree and forest preservation, conduct research and promote the many benefits trees provide. Urban forestry is practiced by municipal and commercial arborists, municipal and utility foresters, environmental policymakers, city planners, consultants, educators, researchers and community activists.