As part of an EPA study and initiative to combat the urban heat island effect and to improve urban air quality, Mayor Richard M. Daley and the City of Chicago began construction of a 38,800 square foot (total roof area) semi-extensive greenroof in April 2000.
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Nature-Based Solutions Case Study Search
This database contains over 400 implementations of nature-based solutions. Use the filters to identify the case studies most relevant to you.
While all cases here exemplify applications of NBS strategies, they were gathered from various sources and not all were written using the framing of nature-based solutions. To qualify as a nature-based solution, a project must provide benefits to both people and nature. In some instances, the human benefits are present but not emphasized in the case write ups; these cases were included because they still provide useful information to learn from.
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The Nature Conservancy aimed to restore 7,100 acres of farmland in Emiquon into a functional floodplain that sustains native species. In 2007, 180,000 trees, 8,000 pounds of seed, and 90,000 upland shrubs and trees have been planted in 1,400 acres of Emiquon. Non-native fish have been removed and native fish have been introduced into these new waters.
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The Harbor Brook CSO 018 Constructed Wetlands Pilot Project serves the dual purposes of treating overflows from CSO 018, currently discharged into Harbor Brook, while also acting as a demonstration project to test the effectiveness of three types of constructed wetland treatment systems (floating wetland island, vertical down flow, and surface water treatment wetlands).
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Clayton County Water Authority (CCWA) has converted from spray irrigation-land application to constructed wetlands to treat municipality wastewater for Clayton County, Georgia. Constructed wetlands lower construction costs from $10 a gallon under the conventional methods to $4.73 a gallon. They also reduce land use by 75%, save energy, and reduce equipment, materials, and maintenance cost.
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