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Streets as Ecosystems: Innovative Approaches to Long-Term Improvements

City streets and plazas present an opportunity to reduce stormwater runoff, manage pollutants, and beautify the public realm. How are cities integrating trees, bioswales, rain gardens, and landscaping to treat streets as ecosystems and integrate nature into city life? Given that capital reconstruction is often necessary to realize the benefits of low-impact stormwater infrastructure, what are effective strategies to institutionalize a green streets approach over the long term?