Trees provide many benefits for people and wildlife in both urban and suburban settings. Trees filter air pollution and water contaminants, while improving air and water quality. Trees also prevent soil erosion, reduce the impacts of stormwater flooding and create shade for cyclists and pedestrians in urban heat islands. Planting trees of various species provide important habitat for urban wildlife, which increases local biodiversity and strengthens the urban forest’s ability to adapt to climate change. The number of trees planted is a measure of how well the City is doing to maintain or increase the ecosystem services of the urban forest. The City aims to maintain or exceed the planting level of street trees and park trees planted each year on public property.