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




The Value of Green Infrastructure

Quantifying the economic value of green infrastructure’s benefits is the key to helping municipalities adopt this innovative and cost-effective rainwater management approach, according to a new report by the Chicago-based Center for Neighborhood Technology (CNT) and American Rivers.

To download a copy, click on “The Value of Green Infrastructure: A Guide to Recognizing Its Economic, Social and Environmental Benefits”

The guide aims to inform decision-makers and planners about the multiple benefits green infrastructure delivers to communities; and guide communities in valuing the benefits of potential green infrastructure investments.


Guide Fills An Information Gap

The guide fills an information gap that has hampered widespread deployment of green infrastructure — the practice of managing rainwater and stormwater with natural systems. “The Value of Green Infrastructure” brings together current research on green infrastructure performance and presents methods for calculating related benefits in water management, energy, air quality, climate, and community livability.

“When you can assign economic value to the wide array of green infrastructure benefits, planners, builders, and city officials can accurately evaluate the advantages of these approaches for managing stormwater in their communities,” said Danielle Gallet, infrastructure strategist at CNT and one of the principal authors of the guide.

“Establishing a framework for calculating the benefits of green infrastructure is a first, key step to making it a mainstream practice.”


Decentralized Rainwater Management

Green infrastructure is a network of decentralized rainwater management practices — such as green roofs, trees, rain gardens and permeable pavement — that can capture and infiltrate rain where it falls, reducing rainwater asnd stormwater runoff and improving the health of surrounding waterways.

The practices provide multiple environmental, economic and social benefits, including, but not limited to:

• Less polluted rianwater runoff
• Improved air quality
• Energy savings
• Increased property values, and
• Reduced greenhouse gas emissions.

This guide helps quantify the multiple energy, economic and environmental dividends we’re seeing in Portland with our own sustainable stormwater efforts,” said Mike Rosen, Watershed Division Manager of Portland’s Bureau of Environmental Services. “Every planner, stormwater manager or developer who’s deciding how to invest their water infrastructure dollars for the next 20 years should read this informative, thought-provoking handbook.”


Green Infrastructure’s Multiple Benefits

Municipalities have often struggled to quantify green infrastructure’s monetary benefits. However, any cost-benefit analysis comparing grey infrastructure with green infrastructure is incomplete if it fails to factor in the multiple benefits that only green infrastructure uniquely delivers. These benefits are above and beyond the basic rainwater and stormwater control benefits, which are assumed to be equal to a similar investment in grey infrastructure.

The values presented in this guide are not the final word. More research is needed to put more accurate dollar figures on the full range of green infrastructure’s benefits. Based on existing research data, many of the estimates in this guide likely undervalue the true worth of green infrastructure benefits, but it is an important first step in the right direction.

“Living green infrastructure has just taken a giant leap forward with the publication of this practical, user-friendly guide that will help policy makers, designers, manufacturers and installers evaluate the many benefits of these important and too often undervalued technologies,” said Steven W. Peck, the founder and president of Green Roofs for Healthy Cities.

“When you do the math, the benefits of green infrastructure really add up,” said Betsy Otto, Vice President for Conservation and Strategic Partnerships at American Rivers, a funder of the project. “This guide will help communities decide where, when, and to what extent green infrastructure practices should be incorporated into their planning, development and redevelopment activities.”


To Learn More About Green Infrastructure:

Click on Cross-Border Alignment: Connecting the Dots Between Land Use Planning, Development, Watershed Health AND Infrastructure Management — “We are working to better match rainwater/stormwater management to the development context through the integration of rainwater into all planning scales from the region to the building,” states Colorado-based Paul Crabtree, a driving force behind the Rainwater-in-Context Initiative.

Click on Urban Leaders Showcase Green Infrastructure, Sustainability Connection at Philadelphia ConferenceIn December 2010, green infrastructure leaders from around the United States gathered to discuss how agencies can dovetail each other’s efforts within a city to maximize benefits for the public. “We needed this conference to share innovations and learn from each other’s experience,” said Howard Neukrug, Chair of the Urban Water Sustainability Council and Deputy of Sustainability for the Philadelphia Water Department.


About American Rivers and CNT

American Rivers is the leading conservation organization fighting for healthy rivers so communities can thrive. American Rivers protects and restores the nation’s rivers and the clean water that sustains people, wildlife and nature. Founded in 1973, American Rivers has more than 65,000 members and supporters, with offices in Washington, DC and nationwide.


American rivers - logo (236p)

Founded in 1978, CNT is a Chicago-based think-and-do tank that works nationally to advance urban sustainability by researching, inventing and testing strategies that use resources more efficiently and equitably. Its programs focus on climate, energy, natural resources, transportation, and community development. CNT is one of eight nonprofits selected from around the world to be recognized by a 2009 MacArthur Award for Creative and Effective Institutions, from the John D. and Catherine T. MacArthur Foundation.

Center for neighbourhood technology - logo (287p)


Posted January 2011