How tree planting, rain gardens, swales and permeable pavements not only control pollution but also help cool urban heat islands, mitigate flooding, recharge groundwater, beautify neighborhoods and enhance nearby property values.
INFOGRAPHIC: How urbanization affects the environment
A rooftop garden atop Chicago's City Hall, to curb what is termed the ‘urban heat island effect‘, a phenomenon created when black-top roofs and asphalt parking lots soak up heat and increase city temperatures on hot summer days.
Green Infrastructure Tool Kit. Broadly called “green infrastructure,” this new set of strategies seeks to manage stormwater, reduce urban heat island effects, improve air quality, and promote economic development and other sustainability goals. Green infrastructure provides an attractive alternative to traditional concrete (or “gray”) infrastructure by making paved and hard surfaces vegetated or permeable.