53 Multi-Benefit Resources

Green Infrastructure Co-Benefits Valuation Tool

Author: Kasey Armstrong, Green Infrastructure Leadership Exchange (2019)
Geography: U.S.
Level of Detail: Decision support tool, Economic valuation

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff storage

Specific Benefits or Trade-offs: Flooding, Land and environment, People and Community

The Green Infrastructure Co-Benefits Valuation Tool is an Excel based economic valuation model. It calculates the net present value (NPV) for different green infrastructure investments. The tool is designed to introduce the potential benefits of a project, so environmental managers can get estimates before performing an exhaustive economic valuation.

A Meta-Analysis of Hedonic Studies to Assess the Property Value Effects of Low Impact Development

Author: Mazzota et al., Atlantic Ecology Division, US EPA (2014)
Geography: U.S.
Level of Detail: Economic valuation

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Local economy, People and Community

A Meta-Analysis of Hedonic Studies to Assess the Property Value Effects of Low Impact Development analyzed 35 different low impact development valuation studies across the United States. Distance and characteristics of the low impact development affect the hedonic valuation. The most robust determinants of willingness to pay are from locally available low impact developments.

The Effect of Low-Impact-Development on Property Values

Author: Ward et al., ECONorthwest (2008)
Geography: Western U.S.
Level of Detail: Economic valuation

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Local economy, People and Community

The Effect of Low-Impact-Development on Property Values examines the added value to houses in a zip code in Seattle, WA with low impact development (LID). Homes with LID sold for 3-5% more than other homes with the same amenities. This indicates people value the aesthetic, economic, and natural benefits of LID on properties.

Portland’s Green Infrastructure: Quantifying the Health, Energy, and Community Livability Benefits

Author: City of Portland Bureau of Environmental Services (2010)
Geography: Western U.S.
Level of Detail: Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping, Runoff conveyance

Specific Benefits or Trade-offs: Aesthetics, Air quality, Energy, Energy for wastewater, GHG emissions, Health and safety, Land and environment, People and Community, Recreation

Portland’s Green Infrastructure: Quantifying the Health, Energy, and Community Livability Benefits quantifies the benefits of green infrastructure (GI) initiatives. Using available research and data, the city quantified benefits in energy and described benefits to community livability and health. This report breaks down the benefits by different GI types to show how projects impact each benefit category.

Identifying linkages between urban green infrastructure and ecosystem services using an expert opinion methodology

Author: Elliott et al., Columbia University (2019)
Geography: Global
Level of Detail: Decision support tool, Qualitative description

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Agricultural, Air quality, Ambient water quality, Carbon sequestration, Community resilience, Educational opportunity, End use energy, Energy, Extreme events, Flooding, Habitat and biodiversity, Health and safety, Land and environment, People and Community, Recreation, Resource recovery, Risk and Resilience, Soil health, Supply augmentation, System resilience, Urban heat island, Water quality, Water Supply

Identifying linkages between urban green infrastructure and ecosystem services using an expert opinion methodology compares benefits in urban distributed stormwater infrastructure. This is commonly known as green infrastructure (GI), provides a wide variety of benefits. This study offers both a methodology for evaluating the multiple benefits of GI as well as a decision-support tool developed through interviews with 46 academic experts that helps to rank different GI strategies based on their known ability to deliver a variety of co-benefits.

Nature-Based Solutions Evidence Tool

Author: University of Oxford (2019)
Geography: Global
Level of Detail: Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Agricultural flooding, Agricultural land management, Conservation design, Floodplain connectivity and rehabilitation, Forest thinning, Infiltration or filtration, Land Management, Living shorelines, Low impact landscaping, Recharge area protection, Reforestation and forest conservation, Riparian buffers, Runoff conveyance, Runoff storage, Stream protection and restoration, Wetland protection and restoration

Specific Benefits or Trade-offs: Agricultural, Air quality, Ambient water quality, Carbon sequestration, Community resilience, Extreme events, Flooding, GHG emissions, Habitat and biodiversity, Health and safety, In stream flows, Land and environment, Local economy, Peak flood volume, People and Community, Resource recovery, Risk and Resilience, Soil health, Supply augmentation, System resilience, Total flood volume, Water quality, Water Supply, Water supply reliability

The Nature-Based Solutions Evidence Tool is primarily an online catalog of peer-reviewed research that provides evidence of the impacts of nature-based solutions (NbS) on a wide variety of benefit categories. The tool allows the user to filter results in a variety of ways, including by intervention type, habitat type, climate change impact, effect of Nbs on ecosystem service, geography, and more. Results are displayed in a variety of formats, helping the user to understand the landscape of quantitative and economic research related to a variety of NbSs.

Landscape Performance Series: Benefits Toolkit

Author: Landscape Architecture Foundation (N/A)
Geography: U.S.
Level of Detail: Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Low impact landscaping, Outdoor water use efficiency, Water Conservation and Efficiency

Specific Benefits or Trade-offs: Flooding, Water quality, Water Supply

The Benefits Toolkit, housed in the Landscape Performance Series, lists calculators and tools that directly help with quantifying the benefits of landscapes. Users can filter results by “Landscape Performance Benefit” including several options for water-related benefits.

Water Funds Toolbox

Author: The Nature Conservancy (N/A)
Geography: Global
Level of Detail: Case study, Decision support tool, Qualitative description

Availability: Publicly Available

Water Management Strategies: Agricultural land management, Conservation design, Distributed Stormwater Infrastructure, Floodplain connectivity and rehabilitation, Infiltration or filtration, Land Management, Low impact landscaping, Recharge area protection, Reforestation and forest conservation, Riparian buffers, Stream protection and restoration, Water Conservation and Efficiency, Wetland protection and restoration

Specific Benefits or Trade-offs: Land and environment, People and Community, Risk and Resilience, Water Supply

The Water Fund Toolbox provides a wide variety of resources, case studies, tools, etc. for groups seeking to create or advance the work of a Water Fund. A Water Fund is an organization that designs and enhances financial and governance mechanisms which unite public, private, and civil society stakeholders around a common goal to contribute to water security through nature-based solutions and sustainable water management.

Green Infrastructure Co-Benefits Valuation Tool

Author: Armstrong, Earth Economics, GI Exchange (2019)
Geography: U.S.
Level of Detail: Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Educational opportunity, Flooding, Land and environment, Peak flood volume, People and Community, Supply augmentation, Total flood volume, Urban heat island, Water quality, Water Supply

The Green Infrastructure Co-benefits Valuation Tool is intended to provide a framework, methods, and values to support rapid screening-level analysis of the costs and benefits associated with a range of GI investments. The tool itself is based in Microsoft Excel and comes with a users guide and fact sheet.

Economic Benefits: Metics and Methods for Landscape Performance Assessment

Author: Wang et al., Utah State University (2016)
Geography: U.S.
Level of Detail: Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Outdoor water use efficiency, Runoff conveyance, Runoff storage, Water Conservation and Efficiency

Specific Benefits or Trade-offs: Aesthetics, Demand changes, Health and safety, Local economy, People and Community, Recreation, Supply augmentation, Water Supply

The Economic Benefits: Metrics and Methods for Landscape Performance Assessment presents a method and standard metrics for assessing the economic benefits of landscapes. This method and the associated metrics can be used to increase the scientific rigor of landscape architecture and to help achieve high(er) levels of sustainability in the built environment. Three test cases are used to demonstrate the utility of the method.

Landscape Performance Series

Author: Landscape Architecture Foundation (N/A)
Geography: U.S.
Level of Detail: Case study, Decision support tool, Economic valuation, Qualitative description, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Low impact landscaping, Outdoor water use efficiency, Water Conservation and Efficiency

Specific Benefits or Trade-offs: Energy, Flooding, Land and environment, People and Community, Water quality, Water Supply

The Landscape Performance Series is a compilation of case studies, fact sheets, and a Benefits Toolkit, to support sustainable landscape design. It is available for designers, agencies, and advocates to help evaluate performance, show value, and make the case for landscapes.

Performance of Two Bioswales on Urban Runoff Management

Author: Xiao et al., (2017)
Geography: Western U.S.
Level of Detail: Case study, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping

Specific Benefits or Trade-offs: Ambient water quality, Water quality

This study evaluated the effectiveness of two bioswales eight years after construction in Davis, California. An identically sized control bioswale consisting of non-disturbed native soil was located adjacent to the treatment bioswale. Surface runoff quantity and quality were measured during three experiments with different pollutant loads.

Promoting ecosystem and human health in urban areas using Green Infrastructure: A literature review

Author: Tzoulas et al., (2007)
Geography: Global
Level of Detail: Qualitative description

Availability: Paywall

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Health and safety, Land and environment, People and Community, Recreation

Promoting ecosystem and human health in urban areas using Green Infrastructure: A literature review formulates a conceptual framework of associations between urban green space, and ecosystem and human health. Through an interdisciplinary literature review the possible contributions of Green Infrastructure on both ecosystem health and human health are critically reviewed. Over a dozen studies are cited that demonstrate human health aspects related to green space and nature. Included definition of ecosystem services and Green Infrastructure which differs from LID definitions of GI in the U.S.

Water LA

Author: The River Project (2018)
Geography: Western U.S.
Level of Detail: Case study, Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Community resilience, End use energy, Energy, Energy for wastewater, Energy for water extraction, Energy for water treatment, Flooding, GHG emissions, Habitat and biodiversity, Health and safety, Land and environment, Local economy, People and Community, Recreation, Risk and Resilience, Soil health, Supply augmentation, Total flood volume, Urban heat island, Water quality, Water Supply, Water supply reliability

The 2018 Water LA report by the River Project explores the opportunities for and challenges of building a resilient region by making small, distributed changes to the urban landscape. The report offers a case study from LA where parcel-scale water management projects provide different social, environmental, and economic benefits.

Perceived species-richness in urban green spaces: Cues, accuracy and well-being impacts

Author: Southon et al., (2018)
Geography: Outside U.S.
Level of Detail: Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Health and safety, People and Community

The authors of Perceived species-richness in urban green spaces…explore the impact of creating biodiverse landscapes within an urban space on users of that space. They assess the impacts of biodiversity on user health and well-being and on factors affecting health and well-being.

Psychological benefits of greenspace increase with biodiversity

Author: Fuller et al., (2007)
Geography: Outside U.S.
Level of Detail: Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Health and safety, People and Community

Psychological benefits of greenspace increase with biodiversity provides evidence that suggests that psychological benefits of greenspace increase with species richness. They argue that their findings indicate that successful management of urban greenspaces should emphasize biological complexity for human health and well-being.

Biodiverse perennial meadows have aesthetic value and increase residents’ perceptions of site quality in urban green-space

Author: Southon et al., (2017)
Geography: Outside U.S.
Level of Detail: Qualitative description, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Health and safety, People and Community

Researches used photos and as well as actual urban green spaces converted to meadows to evaluate perceptions of visitors to these spaces in southern England. Perennial meadows increased perceived quality and appreciation of urban green space, with visitors showing a higher preference for meadows with higher plant and structural diversity.

NatCap Checker

Author: Natural Capital Coalition (2019)
Geography: Global
Level of Detail: Decision support tool, Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Agricultural land management, Centralized Stormwater Infrastructure, Constructed stormwater wetlands, Distributed Stormwater Infrastructure, Flood Control, Floodplain connectivity and rehabilitation, Infiltration or filtration, Land Management, Living shorelines, Low impact landscaping, Recharge area protection, Reforestation and conservation, Riparian buffers, Stream protection and restoration, Wetland protection and restoration

Specific Benefits or Trade-offs: Energy, Flooding, Land and environment, People and Community, Risk and Resilience, Water quality, Water Supply

The NatCap Checker is a tool by the Natural Capital Coalition, created to help organizations make more informed decisions that help conserve and enhance the natural capital that we all depend upon. It is a self-assessment tool that enables practitioners to assess, communicate, and improve the level of confidence in their natural capital assessments.

Natural Infrastructure in the Nexus

Author: Ozment, DiFrancesco, & Gartner, IUCN, International Water Association, World Resources Institute (2015)
Geography: Global
Level of Detail: Decision support tool, Qualitative description

Availability: Publicly Available

Specific Benefits or Trade-offs: Flooding, Water quality, Water Supply

This paper discusses how natural infrastructure, the networks of land and water that provide services to people, can help decision makers and infrastructure managers address interconnected challenges facing water, energy, and food systems, often referred to as the “nexus.” The paper examines reasons and ways to include natural infrastructure in this nexus, challenges that have prevented increased investment in natural infrastructure, and recommendations for moving forward.

Nature and Health

Author: Hartig et al., (2014)
Geography: Global
Level of Detail: Qualitative description, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Constructed stormwater wetlands, Distributed Stormwater Infrastructure, Flood Control, Floodplain connectivity and rehabilitation, Infiltration or filtration, Land Management, Living shorelines, Low impact landscaping, Recharge area protection, Reforestation and conservation, Riparian buffers, Stream protection and restoration, Wetland protection and restoration

Specific Benefits or Trade-offs: Air quality, Community resilience, Health and safety, Land and environment, People and Community, Recreation

This article presents the state of knowledge with regards to human health and well-being from contact with nature. The article includes a discussion of the term “nature,” a review of relevant research including linkages between nature and benefits, and the gaps, challenges, methodological approaches that could be used for future research.

Green Cities: Good Health

Author: University of Washington, U.S. Forest Service, and Urban and Community Forestry (N/A)
Geography: U.S.
Level of Detail: Case study, Economic valuation, Qualitative description, Quantitative benefits

Availability: Publicly Available

Specific Benefits or Trade-offs: Aesthetics, Affordability, Health and safety, Local economy, People and Community, Recreation, Urban heat island

Green Cities: Good Health is an online compilation and synthesis of research related to urban green spaces and human health and well-being. The website includes introductory material, summaries of current research into the numerous benefits of urban green space, future research, and a comprehensive list of references.

Neighborhood greenspace and health in a large urban center

Author: Kardan et al., (2015)
Geography: Outside U.S.
Level of Detail: Case study, Qualitative description, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping

Specific Benefits or Trade-offs: Health and safety, People and Community

This study links tree density in an urban center (Toronto, Canada) to results of a health survey using statistical methods. The findings indicate that more trees improve health perception and health outcomes.

The Blueprint for Increased Investment in Green Infrastructure

Author: Earth Economics (2018)
Geography: U.S.
Level of Detail: Economic valuation, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Constructed stormwater wetlands, Distributed Stormwater Infrastructure, Floodplain connectivity and rehabilitation, In situ environmental treatment, Infiltration or filtration, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Affordability, Air quality, Ambient water quality, Community resilience, Educational opportunity, Energy for wastewater, Flooding, Habitat and biodiversity, Health and safety, In stream flows, Land and environment, Local economy, Peak flood volume, People and Community, Recreation, Regulatory compliance, Risk and Resilience, System resilience, Total flood volume, Urban heat island, Water quality, Water Supply

The Blueprint for Increased Investment in Green Infrastructure is a comprehensive resource for water managers and other decision makers seeking to start or expand investment in green infrastructure. The Blueprint presents five major cultural and institutional shifts that are required at the municipal level for the grown in green infrastructure. Data, tools, tips, and other resources are also provided.

Sustainable Landscapes in the Santa Ana River Watershed

Author: Pacific Institute (2019)
Geography: Western U.S.
Level of Detail: Decision support tool

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Ambient water quality, Demand reduction, Flooding, Peak flood volume, People and Community, Supply augmentation, Total flood volume, Water quality, Water Supply

The Sustainable Landscapes in the Santa Ana River Watershed map is an interactive tool that allows users to explore potential benefits of sustainable landscaping practices across the Santa Ana River Watershed.

The Green Edge: How Commercial Property Investment in Green Infrastructure Creates Value

Author: Clements & St. Juliana, NRDC (2013)
Geography: Northeastern U.S.
Level of Detail: Case study, Economic valuation, Qualitative description, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Affordability, End use energy, Energy, Local economy, People and Community, Regulatory compliance, Reputation, Risk and Resilience, System resilience, Urban heat island, Water supply reliability

This report explores the range of economic benefits that accrue to commercial property owners (including owners of multifamily residential buildings) when they install green infrastructure on their property to improve stormwater management.

Co-benefits Assessment Methodology for Water Savings

Author: California Air Resources Board (2018)
Geography: Western U.S.
Level of Detail: Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Agricultural efficiency, Agricultural land management, Distributed Stormwater Infrastructure, Environmental Remediation, Land Management, Low impact landscaping, Urban indoor efficiency, Urban outdoor efficiency, Water Conservation and Efficiency

Specific Benefits or Trade-offs: Demand reduction, Supply augmentation, Water Supply

Co-benefits Assessment Methodology for Water Savings presents three different water co-benefit assessment methods for three types of projects from the California Climate Investments. The three project types are agricultural irrigation, residential, commercial, or institutional water efficiency, and urban landscaping. The assessment methods are presented from a California perspective, however, the same methods could be applied in different locations with appropriate modifications for climate and other relevant factors.

From Projects to Portfolios: Mainstreaming Large-Scale Investment in Integrated Infrastructure

Author: Martin et al., Earth Economics (2018)
Geography: U.S.
Level of Detail: Decision support tool

Availability: Publicly Available

Water Management Strategies: Constructed stormwater wetlands, Distributed Stormwater Infrastructure, In situ environmental treatment, Living shorelines, Low impact landscaping

Specific Benefits or Trade-offs: Flooding, Water quality, Water Supply

The report From Projects to Portfolios by Earth Economics is a helpful guide and resource for municipal, NGO, and charitable organizations seeking to advance investment in integrated, also known as green, infrastructure. The report is structured to be used as a quick reference guide, or a more in-depth resource, complete with detailed appendices and online links to additional materials.

Green Infrastructure & Health Guide

Author: Oregon Health and Outdoors Initiative, Willamette Partnership, Oregon Public Health Institute (OPHI), The Green Infrastructure Leadership Exchange (2018)
Geography: U.S.
Level of Detail: Decision support tool, Qualitative description

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Community resilience, Educational opportunity, Flooding, Habitat and biodiversity, Health and safety, Land and environment, Local economy, Peak flood volume, People and Community, Recreation, Regulatory compliance, Reputation, Risk and Resilience, Supply augmentation, System resilience, Urban heat island, Water quality, Water Supply

Green Infrastructure & Health Guide provides the tools, resources, and evidence for the connections between green infrastructure (GI) and human health. The chapters include Health Challenges and GI Solutions, GI and Health: What is the connection?, Nature Experiences and Health: Current evidence, Shared Language, Identifying Community Health Needs, Make the Case: Business and more, Community Engagement: Why and how, GI Siting and Design: Considerations for health, Evaluating Health Benefits of GI, and Needs and Next Steps. The appendices include Detailed Community Engagement Guidelines, Sample Tree Planting Health Survey, Sample Logic Model Linking Tree Planting and Health, and Sample City Health and Outdoors Opportunities Assessments.

The Economic Impact of Green City, Clean Waters: The First Five Years

Author: Sustainable Business Network (SBN), Green Stormwater Infrastructure Partners, Econsult Solutions (2016)
Geography: Northeastern U.S.
Level of Detail: Economic valuation

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Conservation design, Detention basins, Distributed Stormwater Infrastructure, Flood Control, Infiltration basins, Infiltration or filtration, Low impact landscaping, Retention basins, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Affordability, Air quality, Community resilience, Energy, Flooding, Habitat and biodiversity, Land and environment, Local economy, People and Community, Recreation, Risk and Resilience, System resilience, Urban heat island, Water quality

The Economic Impact of Green City, Clean Waters: The First Five Years evaluates the economic impact of the Green City, Clean Waters (GCCW) plan in Philadelphia, PA. The Green City, Clean Waters was an initiative of the Philadelphia Water Department to implement more green infrastructure in the city of Philadelphia. The initiative resulted in a multitude of benefits, including boosts in the local economy, increased jobs, improved equity, revived habitats, and overall enhanced aesthetics.

Climatic consequences of adopting drought-tolerant vegetation over Los Angeles as a response to California drought

Author: Vahmani & Ban-Weiss, (2016)
Geography: Western U.S.
Level of Detail: Case study, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping, Urban outdoor efficiency, Water Conservation and Efficiency

Specific Benefits or Trade-offs: Demand reduction, Extreme events, Health and safety, People and Community, Risk and Resilience, Urban heat island, Water Supply

Climatic consequences of adopting drought tolerant vegetation over Los Angeles as a response to California drought utilized a regional climate model to analyze the impacts of drought-tolerant vegetation in Los Angeles. The results revealed that drought-tolerant vegetation contributed to a daytime warming of 1.9 degrees Celsius, largely due to decreases in irrigation, and a nighttime cooling of 3.2 degrees Celsius, due to differences in soil thermodynamics and heat exchange. The report concludes that the greater magnitude of the nighttime cooling could counterbalance the warming effects during the day.

Vision and GIS Case Studies

Author: The Trust for Public Land (N/A)
Geography: U.S.
Level of Detail: Case study

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Community resilience, Educational opportunity, Flooding, Habitat and biodiversity, Land and environment, People and Community, Recreation, Water quality, Water Supply

Vision and GIS Case Studies presents sixteen case studies that utilized the Trust for Public Lands Vision and GIS service. The service employs a greenprinting tool that uses innovative research and mapping techniques to design parks, protect open space, and deliver community-driven conservation plans. A greenprint provides both a long-term vision for conservation and a physical plan to protect a communities precious public spaces. The Trust for Public Land’s services also help communities develop partnerships, inform policies, and attain funding for land conservation efforts.

Milwaukee Green Infrastructure Scenarios Tool

Author: Climate Interactive, Milwaukee Metropolitan Sewerage District (N/A)
Geography: Midwestern U.S.
Level of Detail: Decision support tool

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Air quality, End use energy, Energy, Flooding, Land and environment, Local economy, Peak flood volume, People and Community, Total flood volume, Urban heat island, Water quality

The Milwaukee Green Infrastructure Scenarios Tool (GIST) helps decision makers to analyze various scenarios and determine the best stormwater management solutions in Milwaukee’s Kinnickinnic River Watershed. The tool recommends the green infrastructure project (i.e., green roofs, bioretention, stormwater trees, porous pavement, etc.) that best provides stormwater management, extreme weather resilience, job generation, aesthetics, and financial savings. The tool provides outputs of system performance measures (i.e., number of overflow events annually), capital and operational costs, and the co-benefits of the project, including improved water quality, energy savings, and increased jobs and property values.

Green Infrastructure in Parks: A Guide to Collaboration, Funding, and Community Engagement

Author: U.S. EPA (2017)
Geography: U.S.
Level of Detail: Decision support tool, Qualitative description

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Conservation design, Constructed stormwater wetlands, Detention basins, Distributed Stormwater Infrastructure, Flood Control, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Carbon sequestration, Community resilience, Educational opportunity, Flooding, Habitat and biodiversity, Health and safety, Land and environment, Local economy, People and Community, Recreation, Urban heat island, Water quality

Green Infrastructure in Parks: A Guide to Collaboration, Funding, and Community Engagement analyzes green infrastructure projects in parks and the resulting benefits. The report uses case studies to discuss the multiple benefits and encourage cities to invest in green infrastructure projects within their public parks. The multiple benefits cited within the report include recreation value, attractive park features, social and environmental equity, reduced maintenance, drainage, education, water quality, economic benefits, and overall benefits to environment.

Reducing Stormwater Costs through Low Impact Development (LID) Strategies and Practices

Author: U.S. EPA (2007)
Geography: U.S.
Level of Detail: Qualitative description

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Agriculture, Ambient water quality, Flooding, Habitat and biodiversity, Land and environment, Local economy, People and Community, Regulatory compliance, Risk and Resilience, Supply augmentation, Water quality, Water Supply

Reducing Stormwater Costs through Low Impact Development (LID) Strategies and Practices analyzes 17 case studies of low impact development (LID) projects throughout the United States. The low impact development projects referenced include conservation designs, infiltration practices, runoff storage, runoff conveyance, filtration, and low impact landscaping. The benefits considered within the analysis include environmental benefits (i.e., pollution abatement, protection of downstream water resources, groundwater recharge, water quality improvements, reduced incidence of combined sewer overflows (CSO), habitat improvement), land value and quality of life benefits (i.e., reduced risk of downstream flooding and property damage, increased real estate values, lot yield, improved aesthetics, enhanced public space), and compliance benefits (i.e., regulatory compliance). The analysis also includes a cost comparison of low impact development projects to traditional grey infrastructure projects. The report concludes that low impact development projects significantly reduce costs and improve environmental performance.

Greenprint Resource Hub

Author: The Nature Conservancy, The Conservation Fund, The Trust for Public Land (N/A)
Geography: Global
Level of Detail: Decision support tool

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Land Management, Low impact landscaping

Specific Benefits or Trade-offs: Energy, Flooding, Land and environment, People and Community, Risk and Resilience, Water quality, Water Supply

Greenprint Resource Hub, developed by the Nature Conservancy, is a resource designed to assist managers, policy-makers, and communities on utilizing greenprint in their conservation planning projects. Greenprint is a conservation strategy or tool that addresses economic, environmental, and social benefits of habitats (i.e., grasslands, shrublands, streams, forests, estuaries, wetlands), parks and open spaces (i.e., local parks, state parks, regional trails), complete communities (i.e., healthy residents, green infrastructure), and working lands (i.e., farmlands, grazing lands, timberlands). The resource includes greenprint case studies, a review of best practices, and relevant funding and policies.

Green Infrastructure Guide for Water Management

Author: United Nations Environment Programme (UNEP), UNEP-DHI Partnership, International Union for Conservation of Nature (IUCN), The Nature Conservancy, World Resources Institute (2014)
Geography: U.S.
Level of Detail: Decision support tool, Economic valuation

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Constructed stormwater wetlands, Distributed Stormwater Infrastructure, Flood Control, Floodplain connectivity and rehabilitation, Infiltration or filtration, Land Management, Living shorelines, Low impact landscaping, Reforestation and forest conservation, Riparian buffers, Runoff conveyance, Runoff storage, Wetland protection and restoration

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Extreme events, Flooding, Habitat and biodiversity, Local economy, Recreation, Risk and Resilience, Supply augmentation, Urban heat island, Water quality, Water Supply

Green Infrastructure: Guide for Water Management examines case studies of green infrastructure projects throughout the United States. The report argues that a lack of awareness of the solutions and additional cost benefits that green infrastructure projects can provide is the major barrier to implementation of green infrastructure solutions. The case studies include green infrastructure projects such as green roofs, permeable pavement, levee setbacks, wetland conservation and construction, reforestation and afforestation, and flood bypasses and coastal protection. The case studies cite benefits from the ecosystem service categories (i.e., provisioning services, regulating services, cultural services, habitat or supporting services), providing a qualitative discussion of primary benefits and co-benefits for each case study.

The Economic Benefits of Green Infrastructure A Case Study of Lancaster, PA

Author: U.S. EPA (2014)
Geography: Northeastern U.S.
Level of Detail: Case study, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Air quality, Carbon sequestration, Educational opportunity, End use energy, Energy, Energy for wastewater, Energy for water extraction, Energy for water treatment, Flooding, Habitat and biodiversity, Land and environment, Local economy, People and Community, Recreation, Total flood volume, Urban heat island

The Economic Benefits of Green Infrastructure: A Case Study of Lancaster, PA provides an economic valuation of green infrastructure in Lancaster, PA based on the Framework described in CNT’s “The Value of Green Infrastructure: A Guide to Recognizing Its Economic, Environmental and Social Benefits, 2010”. The report provides data requirements and methodologies for evaluation of water-related benefits (avoided capital costs of storage needs, avoided operational costs from wastewater treatment), energy-related benefits (reduced energy use for indoor temperature control), air-quality benefits (smog reduction, including NO2, O3, SO2 and PM10), and climate change-related benefits (CO2 reduction from carbon sequestration, reductions in water and wastewater pumping and treatment, and building energy use). The report also includes a discussion on the additional qualitative benefits including reduced urban heat island effect, increased property value, reduced noise pollution, increased recreational opportunities, habitat improvement, public education, and community cohesion.

Rainwater as a Resource: A Report on Three Sites Demonstrating Sustainable Stormwater Management

Author: TreePeople (2007)
Geography: Western U.S.
Level of Detail: Case study, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Distributed Stormwater Infrastructure, Drywells, Flood Control, Groundwater Management, Groundwater recharge, Infiltration basins, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Air quality, Ambient water quality, Carbon sequestration, Educational opportunity, Energy, Energy for wastewater, Flooding, Health and safety, Land and environment, People and Community, Recreation, Secondary energy demand, Supply augmentation, Urban heat island, Water quality, Water Supply

Rainwater as a Resource: A Report on Three Sites Demonstrating Sustainable Stormwater Management (2007) presents three case studies for stormwater management: (1) single-family, parcel sized greening in South Los Angeles, CA, (2) campus greening at Hillery T. Broadous Elementary School in Pacoima, CA, and (3) campus greening at Open Charter Magnet Elementary School in Westchester, CA. The report includes costs and quantified benefits for tree benefits (tree canopy, carbon storage, carbon sequestration, energy savings), stormwater benefits (runoff reduction, avoided storage), and air pollution benefits (ozone, SO2, NO2, PM10, and CO removal). The report also includes a discussion of additional non-quantified benefits including student health and safety, green waste reuse, and green recreation space.

Public Private Partnerships and Finance of Large-Scale Green Infrastructure in the Great Lakes Basin

Author: Sinha et al., Environmental Consulting and Technology, Inc; Corvias; Encourage Capital (2017)
Geography: Midwestern U.S.
Level of Detail: Case study, Qualitative description

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Floodplain connectivity and rehabilitation, Infiltration or filtration, Land Management, Low impact landscaping, Reforestation and forest conservation, Runoff conveyance, Runoff storage, Wetland protection and restoration

Specific Benefits or Trade-offs: Ambient water quality, Energy, Flooding, Habitat and biodiversity, Health and safety, Land and environment, People and Community, Supply augmentation, Urban heat island, Water quality, Water Supply

Public Private Partnerships and Finance of Large-Scale Green Infrastructure in the Great Lakes Basin is a report presenting the outcome of an initiative to implement “large-scale” green infrastructure projects using private financing and/or private delivery in the Great Lakes Basin. “Large-scale” is defined as a green infrastructure project that requires an investment of at least $50 million in a particular region. The report identifies main economic and regulatory drivers for green infrastructure, as well as presents a decision tree as a tool to help communities decide if private financing is appropriate for their needs.

The Hidden Value of Landscapes: Implications for Drought Planning

Author: Johnson, Koski, & O'Connor, Colorado State University (2017)
Geography: Western U.S.
Level of Detail: Qualitative description

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Air quality, Carbon sequestration, Community resilience, Flooding, Habitat and biodiversity, Health and safety, Land and environment, Local economy, Peak flood volume, People and Community, Risk and Resilience, Total flood volume, Urban heat island, Water supply reliability

The Hidden Value of Landscapes: Implications for Drought Planning analyzes the impacts of landscaping on quality of life, environment, and land values in Colorado. The report illustrates that while landscaping can provide the primary goal of drought relief, it also provides a suite of co-benefits. These benefits include environmental benefits (i.e., air quality, carbon sequestration, cooling effects, stormwater management, and wildlife habitat), increased real estate value, and enhanced community and health.

Co-benefits for Water and Biodiversity from the Sustainable Management of High Nature Value Farmland

Author: Moran & Sullivan, Centre for Environmental Research Innovation and Sustainability (2017)
Geography: Outside U.S.
Level of Detail: Qualitative description

Availability: Publicly Available

Water Management Strategies: Agricultural land management, Distributed Stormwater Infrastructure, Floodplain connectivity and rehabilitation, Land Management, Low impact landscaping

Specific Benefits or Trade-offs: Ambient water quality, Flooding, Habitat and biodiversity, In stream flows, Land and environment, Peak flood volume, Total flood volume, Water quality

Co-benefits for Water and Biodiversity from the Sustainable Management of High Nature Value Farmland examines the potential for high nature value farmland in Ireland. The types of high nature value landscapes cited in the report include farmed uplands, calcareous grassland and limestone pavement, machair/coastal grasslands, wet grasslands, islands, river floodplains, and the Wexford slobs. The report discusses water quality and water quantity benefits, as well as potential biodiversity benefits that can result from the maintenance of high nature value landscapes.

LA Sustainable Water Project: Los Angeles River Watershed

Author: Mika et al., UCLA Grand Challenges (2017)
Geography: Western U.S.
Level of Detail: Qualitative description

Availability: Publicly Available

Water Management Strategies: Centralized Stormwater Infrastructure, Distributed Stormwater Infrastructure, Environmental Remediation, Flood Control, Groundwater extraction, Groundwater Management, Groundwater recharge, Groundwater remediation, Groundwater storage, Indirect potable reuse, Infiltration basins, Infiltration or filtration, Low impact landscaping, On site nonpotable reuse, Runoff conveyance, Runoff storage, Spreading basins, Urban and industrial nonpotable reuse, Water Reuse

Specific Benefits or Trade-offs: Ambient water quality, In stream flows, Land and environment, Supply augmentation, Water quality, Water Supply

LA Sustainable Water Project: Los Angeles River Watershed provides an in-depth analysis of the potential future opportunities for water recycling, stormwater capture, groundwater recharge, and water quality improvements along the Los Angeles River. The analysis takes into account current water supply and water quality projects and management practices along the river. The report deduces that more work is needed to better understand optimal levels of stormwater capture and water recycling along the river so as to balance the impact on in-stream flows.

Stormwater Capture Master Plan

Author: Los Angeles Department of Water and Power (LADWP) (2015)
Geography: Western U.S.
Level of Detail: Decision support tool, Qualitative description

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Groundwater Management, Groundwater recharge, Infiltration or filtration, Low impact landscaping, On site nonpotable reuse, Runoff conveyance, Runoff storage, Spreading basins, Water Reuse

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Demand reduction, Flooding, Habitat and biodiversity, Health and safety, Land and environment, Local economy, Peak flood volume, People and Community, Recreation, Risk and Resilience, Supply augmentation, System resilience, Urban heat island, Water quality, Water Supply

Los Angeles’ Department of Water and Power (LADWP) Stormwater Capture Master Plan develops a strategy for long-term stormwater capture potential, examination of projects and programs, estimation of the value of projects with ancillary benefits, and stormwater program and policy implementations in California. Stormwater programs include on-site infiltration, green streets, subregional infiltration, on-site direct use, subregional direct use, and impervious replacement. The multiple benefits cited from increased stormwater capture include groundwater recharge, water conservation, open space alternatives, and improved downstream water quality and peak flow.

Systemic solutions for multi-benefit water and environmental management

Author: Everard & McInnes, (2013)
Geography: Outside U.S.
Level of Detail: Qualitative description

Availability: Paywall

Water Management Strategies: Agricultural flooding, Centralized Stormwater Infrastructure, Conservation design, Constructed stormwater wetlands, Distributed Stormwater Infrastructure, Flood Control, Infiltration or filtration, Land Management, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Agriculture, Ambient water quality, Carbon sequestration, Energy, Energy for wastewater, Flooding, Habitat and biodiversity, Land and environment, Peak flood volume, People and Community, Recreation, Total flood volume, Water quality

Systemic solutions for multi-benefit water and environmental management provides an academic, theoretical critique on the evaluation of multi-benefit systems. The report comprises case studies of successful green infrastructure projects, including constructed wetlands, urban ecosystem technologies, agricultural washlands, and integrated constructed wetlands.

Barriers and Gateways to Green Infrastructure

Author: Clean Water America Alliance (2011)
Geography: U.S.
Level of Detail: Qualitative description

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Air quality, Carbon sequestration, End use energy, Energy, Extreme events, Flooding, Habitat and biodiversity, Health and safety, Land and environment, Local economy, Peak flood volume, People and Community, Recreation, Risk and Resilience, System resilience, Total flood volume, Urban heat island

Barriers and Gateways to Green Infrastructure identifies and explores the major barriers to implementation of green infrastructure for stormwater management. The barriers were identified through a survey of various stakeholder groups from across the United States, and included the following themes: technical and physical barriers, legal and regulatory barriers, financial barriers, and community and institutional barriers. The report also provides several recommendations to the U.S. EPA for overcoming these barriers, including creation of new stormwater regulations and permits, full accounting for economic and environmental benefits, embracing of new stormwater approaches, and increased federal funding for green infrastructure.

The Value of Green Infrastructure: A Guide to Recognizing Its Economic, Environmental and Social Benefits

Author: Center for Neighborhood Technology, American Rivers (2010)
Geography: U.S.
Level of Detail: Decision support tool, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Community resilience, Demand reduction, Drinking water quality, Educational opportunity, End use energy, Energy, Energy for wastewater, Flooding, Habitat and biodiversity, Land and environment, Peak flood volume, People and Community, Recreation, Supply augmentation, Total flood volume, Urban heat island, Water quality, Water Supply

The Value of Green Infrastructure: A Guide to Recognizing Its Economic, Environmental and Social Benefits is an in-depth framework for evaluating the multiple benefits of green infrastructure projects, including green roofs, tree planting, bioretention and infiltration, permeable pavement, and water harvesting. The framework provides methodologies for valuation of water, energy, air quality, and climate change-related benefits, as well as a qualitative discussion on community livability and public education benefits.

Green Stormwater Infrastructure Economics in the Boise Urban Area

Author: Hjerpe & Adams, (2015)
Geography: Western U.S.
Level of Detail: Case study, Economic valuation

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, Carbon sequestration, Community resilience, Drinking water quality, Educational opportunity, Habitat and biodiversity, Health and safety, Land and environment, People and Community, Recreation, Regulatory compliance, Resource recovery, Risk and Resilience, Supply augmentation, Urban heat island, Water quality, Water Supply

Green Stormwater Infrastructure Economics in the Boise Urban Area (2015) examines the economics of green versus grey infrastructure in Boise, Idaho. Infrastructure projects analyzed include bioretention, trees with suspended pavement systems, permeable pavement, bioswales, conventional trees without suspended pavement systems, and conventional paved alleyways. Biophysical services and social benefits are compared to the alternative (i.e., status quo) option to determine the differences in services. The biophysical services identified include waste absorption/pollutant reduction, groundwater recharge, carbon sequestration, temperature reduction, and biodiversity/habitat provision. The social benefits identified include clean drinking water, water supply, clean air, aesthetics and recreation, pedestrian and vehicle safety, heat island effect, education and community engagement, and compliance credits.

The Economics of Low-Impact Development: A Literature Review

Author: ECONorthwest (2007)
Geography: U.S.
Level of Detail: Economic valuation

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Air quality, Ambient water quality, End use energy, Energy, Flooding, Land and environment, Local economy, Peak flood volume, People and Community, Supply augmentation, Total flood volume, Water quality, Water Supply

The Economics of Low-Impact Development: A Literature Review provides a review of economic valuations of low-impact development projects. The multiple benefits of low-impact development cited within the report include reduced flooding, improved water quality, increased groundwater recharge, reduced public expenditures on stormwater infrastructure, reduced energy use, improved air quality, and enhanced aesthetics and property values. The report provides guidance and literature discussion on methodologies for calculating the costs and benefits of low-impact development projects.

The Value of Green Infrastructure for Urban Climate Adaptation

Author: Foster, Lowe, & Winkelman, Center for Clean Air Policy (2011)
Geography: Global
Level of Detail: Decision support tool, Economic valuation

Availability: Publicly Available

Water Management Strategies: Conservation design, Distributed Stormwater Infrastructure, Infiltration or filtration, Low impact landscaping, Runoff conveyance, Runoff storage

Specific Benefits or Trade-offs: Aesthetics, Ambient water quality, Community resilience, Demand reduction, End use energy, Energy, Extreme events, Flooding, Peak flood volume, People and Community, Risk and Resilience, System resilience, Total flood volume, Water quality, Water Supply, Water supply reliability

The Value of Green Infrastructure for Urban Climate Adaptation provides a methodology for calculating the costs and benefits of green infrastructure, with particular focus on urban climate adaptation. Benefits of green infrastructure include land value, quality of life, public health, hazard mitigation, and regulatory compliance. In the report, economic analyses are provided for “Eco-Roofs,” Green Alleys and Streets, and Urban Forestry with several case study examples provided.

A framework for assessing urban greenery’s effects and valuing its ecosystem services

Author: Andersson-Sköld et al., (2018)
Geography: Outside U.S.
Level of Detail: Decision support tool, Quantitative benefits

Availability: Publicly Available

Water Management Strategies: Distributed Stormwater Infrastructure, Low impact landscaping

Specific Benefits or Trade-offs: Aesthetics, Air quality, Energy, Habitat and biodiversity, Health and safety, Land and environment, People and Community, Secondary energy demand, Supply augmentation, Water Supply

A framework for assessing urban greenery’s effects and valuing its ecosystem services identifies biophysical structure components of urban green space, the associated function, an indicator, effectivity factor, and ecosystem services associated. The framework compares the perceived value of the ecosystem service to other potential services (i.e., public transport, housing, or culture, compared to biodiversity, stormwater flood risk, and perceived well being). The article includes a case study in which the framework was applied to urban areas in Gothenburg, Sweden.