Manhattan's Street Trees: An Unfinished Public Health Story.

Area of Science:

• Urban Public Health
• Environmental History
• Urban Forestry

Background:

• Stephen Smith championed street trees in 1872 for mitigating heat and purifying air in New York City.
• The American Public Health Association initially supported urban trees but later shifted focus with the rise of biomedical public health.
• Despite shifts, Smith's advocacy resulted in legislation mandating the Parks Department manage street trees for public health.

Purpose of the Study:

• To explore the historical role of urban trees in public health initiatives.
• To examine Stephen Smith's 40-year campaign for New York City's street tree program.
• To highlight the potential of integrating urban greening with public health and climate change mitigation.

Main Methods:

• Historical analysis of Stephen Smith's advocacy and legislative efforts.
• Review of the American Public Health Association's stance on urban environmental factors.
• Examination of the trajectory of New York City's street tree management program.

Main Results:

• Smith's persistent advocacy led to the 1902 law and a 1914 campaign to enforce it, establishing a public health basis for street tree management.
• New York City's street tree program, though erratic, now largely aligns with Smith's original vision.
• The study underscores the historical neglect and potential resurgence of trees in urban public health strategies.

Conclusions:

• Public health can significantly contribute to creating greener cities and addressing climate change.
• Replicating Smith's "health in all policies" approach is crucial for effective urban environmental interventions.
• Further field research is needed to bolster the integration of urban greening and public health.