Green infrastructure financing as an imperative to achieve green goals

Rae Zimmerman, Ryan Brenner, Jimena Llopis Abella

Research output: Contribution to journalArticlepeer-review


Green infrastructure (GI) has increasingly gained popularity for achieving adaptation and mitigation goals associated with climate change and extreme weather events. To continue implementing GI, financial tools are needed for upfront project capital or development costs and later for maintenance. This study's purpose is to evaluate financing tools used in a selected GI dataset and to assess how those tools are linked to various GI technologies and other GI project characteristics like cost and size. The dataset includes over 400 GI U.S. projects, comprising a convenience sample, from the American Society of Landscape Architects (ASLA). GI project characteristics were organized to answer a number of research questions using descriptive statistics. Results indicated that the number of projects and overall cost shares were mostly located in a few states. Grants were the most common financial tool with about two-thirds of the projects reporting information on financial tools receiving grant funding. Most projects reported financing from only one tool with a maximum of three tools. Projects primarily included multiple GI technologies averaging three and a maximum of nine. The most common GI technologies were bioswales, retention, rain gardens, and porous pavements. These findings are useful for decision-makers evaluating funding support for GI.

Original languageEnglish (US)
Article number39
Issue number3
StatePublished - Mar 1 2019


  • Climate mitigation and adaptation
  • Co-benefits
  • Financial sources
  • Green infrastructure finance
  • Green infrastructure project costs
  • Private finance
  • Public finance
  • Stormwater management

ASJC Scopus subject areas

  • Atmospheric Science


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